Lactam metalloprotease inhibitors

ABSTRACT

The present application describes novel lactams and derivatives thereof of formula I:                    
     or pharmaceutically acceptable salt forms thereof, wherein rings ring B is a 4-8 membered cyclic amide containing from 0-3 additional heteroatoms selected from N, O, and S, which are useful as metalloprotease inhibitors.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. Ser. No. 09/516,709, filed Mar. 1, 2000, now U.S. Pat. No. 6,403,632, which in turn is a divisional of U.S. Ser. No. 09/165,747, filed Oct. 2, 1998, now U.S. Pat. No. 6,057,336, which in turn claims the benefit of U.S. Provisional App. Ser. No. 60/062,418, filed Oct. 3, 1997.

FIELD OF THE INVENTION

This invention relates generally to novel lactam metalloprotease inhibitors, pharmaceutical compositions containing the same, and methods of using the same.

BACKGROUND OF THE INVENTION

There is now a body of evidence that metalloproteinases (MP) are important in the uncontrolled breakdown of connective tissue, including proteoglycan and collagen, leading to resorption of the extracellular matrix. This is a feature of many pathological conditions, such as rheumatoid and osteoarthritis, corneal, epidermal or gastric ulceration; tumor metastasis or invasion; periodontal disease and bone disease. Normally these catabolic enzymes are tightly regulated at the level of their synthesis as well as at their level of extracellular activity through the action of specific inhibitors, such as alpha-2-macroglobulins and TIMP (tissue inhibitor of metalloproteinase), which form inactive complexes with the MP's.

Osteo- and Rheumatoid Arthritis (OA and RA respectively) are destructive diseases of articular cartilage characterized by localized erosion of the cartilage surface. Findings have shown that articular cartilage from the femoral heads of patients with OA, for example, had a reduced incorporation of radiolabeled sulfate over controls, suggesting that there must be an enhanced rate of cartilage degradation in OA (Mankin et al. J. Bone Joint Surg. 52A, 1970, 424-434). There are four classes of protein degradative enzymes in mammalian cells: serine, cysteine, aspartic and metalloproteinases. The available evidence supports that it is the metalloproteinases which are responsible for the degradation of the extracellular matrix of articullar cartillage in OA and RA. Increased activities of collagenases and stromelysin have been found in OA cartilage and the activity correlates with severity of the lesion (Mankin et al. Arthritis Rheum. 21, 1978, 761-766, Woessner et al. Arthritis Rheum. 26, 1983, 63-68 and Ibid. 27, 1984, 305-312). In addition, aggrecanase (a newly identified metalloproteinase enzymatic activity) has been identified that provides the specific cleavage product of proteoglycan, found in RA and OA patients (Lohmander L. S. et al. Arthritis Rheum. 36, 1993, 1214-22).

Therefore metalloproteinases (MP) have been implicated as the key enzymes in the destruction of mammalian cartilage and bone. It can be expected that the pathogenesis of such diseases can be modified in a beneficial manner by the administration of MP inhibitors, and many compounds have been suggested for this purpose (see Wahl et al. Ann. Rep. Med. Chem. 25, 175-184, AP, San Diego, 1990).

Tumor necrosis factor (TNF) is a cell associated cytokine that is processed from a 26kd precursor form to a 17kd active form. TNF has been shown to be a primary mediator in humans and in animals, of inflammation, fever, and acute phase responses, similar to those observed during acute infection and shock. Excess TNF has been shown to be lethal. There is now considerable evidence that blocking the effects of TNF with specific antibodies can be beneficial in a variety of circumstances including autoimmune diseases such as rheumatoid arthritis (Feldman et al, Lancet, 1994, 344, 1105) and non-insulin dependent diabetes melitus. (Lohmander L. S. et al. Arthritis Rheum. 36, 1993, 1214-22) and Crohn's disease (Macdonald T. et al. Clin. Exp. Immunol. 81, 1990, 301) Compounds which inhibit the production of TNF are therefore of therapeutic importance for the treatment of inflammatory disorders. Recently it has been shown that a matrix metalloproteinase or family of metalloproteinases, hereafter known as TNF-convertases (TNF-C), as well as other MP's are capable of cleaving TNF from its inactive to active form (Gearing et al Nature, 1994, 370, 555). This invention describes molecules that inhibit this conversion and hence the secretion of active TNF-a from cells. These novel molecules provide a means of mechanism based therapeutic intervention for diseases including but not restricted to septic shock, haemodynamic shock, sepsis syndrom, post ischaemic reperfusion injury, malaria, Crohn's disease, inflammatory bowel diseases, mycobacterial infection, meningitis, psoriasis, congestive heart failure, fibrotic diseases, cachexia, graft rejection, cancer, diseases involving angiogenesis, autoimmune diseases, skin inflammatory diseases, osteo and rheumatoid arthritis, multiple sclerosis, radiation damage, hyperoxic alveolar injury, periodontal disease, HIV and non-insulin dependent diabetes melitus.

Since excessive TNF production has been noted in several disease conditions also characterized by MMP-mediated tissue degradation, compounds which inhibit both MMPs and TNF production may also have a particular advantage in diseases where both mechansisms are involved.

There are several patents which disclose hydroxamate and carboxylate based MMP inhibitors.

WO95/09841 describes compounds that are hydroxamic acid derivatives and are inhibitors of cytokine production.

European Patent Application Publication No. 574,758 A1, discloses hydroxamic acid derivatives as collagenase inhibitors having the general formula:

GB 2 268 934 A and WO 94/24140 claim hydroxamate inhibitors of MMPs as inhibitors of TNF production.

The compounds of the current invention act as inhibitors of MMPs, in particular aggrecanase and TNF. These novel molecules are provided as anti-inflammatory compounds and cartilage protecting therapeutics. The inhibiton of aggrecanase, TNF-C, and other metalloproteinases by molecules of the present invention indicates they are anti-inflammatory and should prevent the degradation of cartilage by these enzymes, thereby alleviating the pathological conditions of osteo- and rheumatoid arthritis.

SUMMARY OF THE INVENTION

Accordingly, one object of the present invention is to provide novel lactams which are useful as metalloprotease inhibitors or pharmaceutically acceptable salts or prodrugs thereof.

It is another object of the present invention to provide pharmaceutical compositions comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of at least one of the compounds of the present invention or a pharmaceutically acceptable salt or prodrug form thereof.

It is another object of the present invention to provide a method for treating inflammatory disorders comprising administering to a host in need of such treatment a therapeutically effective amount of at least one of the compounds of the present invention or a pharmaceutically acceptable salt or prodrug form thereof.

These and other objects, which will become apparent during the following detailed description, have been achieved by the inventors' discovery that compounds of formula (I):

or pharmaceutically acceptable salt or prodrug forms thereof, wherein A, B, R¹, R², R³, and R⁴ are defined below, are effective metalloprotease inhibitors.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[1] Thus, in a first embodiment, the present invention provides a novel compound of formula I:

or a stereoisomer or pharmaceutically acceptable salt form thereof, wherein;

A is selected from COR⁵, —CO₂H, CH₂CO₂H, —CO₂R⁶, —CONHOH, —CONHOR⁵, —CONHOR⁶, —NHR^(a), —N(OH)COR⁵, —SH, —CH₂SH, —SO₂NHR^(a), SN₂H₂R^(a), PO(OH)₂, and PO(OH)NHR^(a);

ring B is a 4-8 membered cyclic amide containing from 0-3 additional heteroatoms selected from O, NR^(a), and S(O)_(p), 0-1 additional carbonyl groups and 0-1 double bonds;

R¹ is U—X—Y—Z—U^(a)—X^(a)—Y^(a)—Z^(a);

U is absent or is selected from: O, NR^(a), C(O), C(O)O, OC(O), C(O)NR^(a), NR^(a)C(O), OC(O)O, OC(O)NR^(a), NR^(a)C(O)O, NR^(a)C(O)NR^(a), S(O)_(p), S(O)_(p)NR^(a), NR^(a)S(O)_(p), and NR^(a)SO₂NR^(a);

X is absent or selected from C₁₋₁₀ alkylene, C₂₋₁₀ alkenylene, and C₂₋₁₀ alkynylene;

Y is absent or selected from O, NR^(a), S(O)_(p), and C(O);

Z is absent or selected from a C₃₋₁₃ carbocyclic residue substituted with 0-5 R^(b) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)O, OC(O), C(O)NR^(a), NR^(a)C(O), OC(O)O, OC(O)NR^(a), NR^(a)C(O)O, NR^(a)C(O)NR^(a), S(O)_(p), S(O)_(p)NR^(a), NR^(a)S(O)_(p), and NR^(a)SO₂NR^(a);

X^(a) is absent or selected from C₁₋₁₀ alkylene, C₂₋₁₀ alkenylene, C₂₋₁₀ alkynylene;

Y^(a) is absent or selected from O, NR^(a), S(O)_(p), and C(O);

Z^(a) is selected from H, a C₃₋₁₃ carbocyclic residue substituted with 0-5 R^(c) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c);

R² is selected from H, Q′, C₁₋₁₀ alkylene-Q′, C₂₋₁₀ alkenylene-Q′, C₂₋₁₀ alkynylene-Q′, (CRR′)_(r′)O(CRR′)_(r′)Q′, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)O(CRR′)_(r)—Q′, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q′, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR)_(r)—Q′, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—Q′, and (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—Q′;

R, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, CH═CH₂, CH═CHCH₃, and CH₂CH═CH₂;

R′, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, and CH(CH₃)₂;

alternatively, R¹ and R² combine to form a C₃₋₁₃ carbocyclic residue substituted with R¹′ and 0-3 R^(b) or a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with R¹′ and 0-3 R^(b);

Q′ is selected from H, a C₃₋₁₃ carbocyclic residue substituted with 0-5 R^(b) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

R^(1′) is U^(a)—X^(a)—Y^(a)—Z^(a);

R³ is selected from H, Q, C₁₋₁₀ alkylene-Q, C₂₋₁₀ alkenylene-Q, C₂₋₁₀ alkynylene-Q, (CRR′)_(r′)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r)C(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)O(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR,)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r″)NHQ, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)NHC(O)OR^(a), and (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)NHC(O)(CRR′)_(r)NHC(O)OR^(a),

Q is selected from H, a C₃₋₁₃ carbocyclic residue substituted with 0-5 R^(b) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

R⁴ is selected from H, C₁₋₁₀ alkylene-H, C₂₋₁₀ alkenylene-H, C₂₋₁₀ alkynylene-H, (CRR′)_(r′)O(CRR′)_(r)—H, (CRR′)_(r′)NR^(a)(CRR′)_(r)—H, (CRR′)_(r′)C(O)(CRR′)_(r)—H, (CRR′)_(r′)C(O)O(CRR′)_(r)—H, (CRR′)_(r′)OC(O)(CRR′)_(r)—H, (CRR′)_(r′)C(O)NR^(a)(CRR,)_(r)—H, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—H, (CRR′)_(r′)OC(O)O(CRR′)_(r)—H, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—H, (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—H, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—H, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—H, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—H, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—H, and (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR′)_(r)—H;

alternatively, R³ and R⁴ combine to form a C₃₋₁₃ carbocyclic residue substituted with R¹′ and 0-3 R^(b) or a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with R¹′ and 0-3 R^(b);

R^(a), at each occurrence, is independently selected from H, C₁₋₄ alkyl, phenyl and benzyl;

R^(a′), at each occurrence, is independently selected from H, C₁₋₄ alkyl, phenyl and benzyl;

R^(a″), at each occurrence, is independently selected from H, C₁₋₄ alkyl, benzyl, C₃₋₇ carbocyclic residue, or a 5 to 6 membered heteroaromatic ring containing 1-4 heteroatoms selected from the group consisting of N, O, and S;

alternatively, R^(a) and R^(a′) taken together with the nitrogen to which they are attached form a 5 or 6 membered ring containing from 0-1 additional heteroatoms selected from the group consisting of N, O, and S;

R^(b), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a′), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, and CF₂CF₃;

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), NR^(a)C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, —CH(═NOH), —C(═NOH)CH₃, (CRR′)_(s)O(CRR′)_(s′)R^(d), (CRR′)_(s)S(O)_(p)(CRR′)_(s′)R^(d), (CRR′)_(s)NR^(a)(CRR′)_(s′)R^(d), phenyl, and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S;

R⁵, at each occurrence, is selected from C₁₋₁₀ alkyl substituted with 0-2 R^(b), and C₁₋₈ alkyl substituted with 0-2 R^(d);

R^(d), at each occurrence, is independently selected from phenyl substituted with 0-3 R^(b), biphenyl substituted with 0-2 R^(b), naphthyl substituted with 0-3 R^(b) and a 5-10 membered heteroaryl system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-3 R^(b);

R⁶, at each occurrence, is selected from phenyl, naphthyl, C₁₋₁₀ alkyl-phenyl-C₁₋₆ alkyl-, C₃₋₁₁ cycloalkyl, C₁₋₆ alkylcarbonyloxy-C₁₋₃ alkyl-, C₁₋₆ alkoxycarbonyloxy-C₁₋₃ alkyl-, C₂₋₁₀ alkoxycarbonyl, C₃₋₆ cycloalkylcarbonyloxy-C₁₋₃ alkyl-, C₃₋₆ cycloalkoxycarbonyloxy-C₁₋₃ alkyl-, C₃₋₆ cycloalkoxycarbonyl, phenoxycarbonyl, phenyloxycarbonyloxy-C₁₋₃ alkyl-, phenylcarbonyloxy-C₁₋₃ alkyl-, C₁₋₆ alkoxy-C₁₋₆ alkylcarbonyloxy-C₁₋₃ alkyl-, [5-(C₁₋₅ alkyl)-1,3-dioxa-cyclopenten-2-one-yl]methyl, (5-aryl-1,3-dioxa-cyclopenten-2-one-yl)methyl, —C₁₋₁₀ alkyl-NR⁷R^(7a), —CH(R⁸)OC(═O)R⁹, —CH(R⁸)OC(═O)OR⁹, and

R⁷ is selected from H and C₁₋₁₀ alkyl, C₁₋₆ alkenyl, C₃₋₆ cycloalkyl-C₁₋₃ alkyl-, and phenyl-C₁₋₆ alkyl-;

R^(7a) is selected from H and C₁₋₁₀ alkyl, C₁₋₆ alkenyl, C₃₋₆ cycloalkyl-C₁₋₃ alkyl-, and phenyl-C₁₋₆ alkyl-;

R⁸ is selected from H and C₁₋₄ linear alkyl;

R⁹ is selected from H, C₁₋₈ alkyl substituted with 1-2 R^(e), C₃₋₈ cycloalkyl substituted with 1-2 R^(e), and phenyl substituted with 0-2 R^(b);

R^(e), at each occurrence, is selected from C₁₋₄ alkyl, C₃₋₈ cycloalkyl, C₁₋₅ alkoxy, phenyl substituted with 0-2 R^(b);

p, at each occurrence, is selected from 0, 1, and 2;

r, at each occurrence, is selected from 0, 1, 2, 3, 4, and 5;

r′, at each occurrence, is selected from 0, 1, 2, 3, 4, and 5;

r″, at each occurrence, is selected from 1, 2, and 3;

s, at each occurrence, is selected from 0, 1, 2, and 3; and,

s′, at each occurrence, is selected from 0, 1, 2, and 3.

[2] In a preferred embodiment, the present invention provides a novel compound of formula I, wherein;

A is selected from COR⁵, —CO₂H, CH₂CO₂H, —CONHOH, —CONHOR⁵, —CONHOR⁶, —N(OH)COR⁵, —SH, and —CH₂SH;

ring B is a 4-7 membered cyclic amide containing from 0-2 additional heteroatoms selected from O, NR^(a), and S(O)_(p), and 0-1 additional carbonyl groups and 0-1 double bonds;

U is absent;

Y is absent;

Z is absent or selected from a C₅₋₁₀ carbocyclic residue substituted with 0-5 R^(b) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)NR^(a), NR^(a)C(O), OC(O)NR^(a), NR^(a)C(O)O, NR^(a)C(O)NR^(a), S(O)_(p)NR^(a), and NR^(a)S(O)_(p);

R² is selected from H, Q′, C₁₋₅ alkylene-Q′, C₂₋₅ alkenylene-Q′, C₂₋₅ alkynylene-Q′, (CRR′)_(r′)O(CRR′)_(r)—Q′, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)(CRR′)_(r)—Q′, (CRR′)_(r′)C(O)O(CRR′)_(r)—Q′, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q′, and (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q′;

Q′ is selected from H, phenyl substituted with 0-3 R^(b) and a 5-6 membered heteroaryl system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-3 R^(b);

R³ is selected from H, Q, C₁₋₁₀ alkylene-Q, C₂₋₁₀ alkenylene-Q, C₂₋₁₀ alkynylene-Q, (CRR′)_(r′)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)(CRR′)_(r′)Q, (CRR)_(r)C(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—Q, and (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR′)_(r)—Q;

R, at each occurrence, is independently selected from H, CH₃, and CH₂CH₃;

R′, at each occurrence, is independently selected from H and CH₃;

Q is selected from H, a C₃₋₁₀ carbocyclic residue substituted with 0-5 R^(b) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b); and,

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.

[3] In a more preferred embodiment, the present invention provides a novel compound of formula I, wherein;

A is selected from —CO₂H, CH₂CO₂H, —CONHOH, —CONHOR⁵, and —N(OH)COR⁵;

ring B is a 4-6 membered cyclic amide containing from 0-2 additional heteroatoms selected from O, NR^(a), and S(O)_(p), and 0-1 additional carbonyl groups and 0-1 double bonds;

Z is absent or selected from a C₅₋₆ carbocyclic residue substituted with 0-3 R^(b) and a 5-9 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)NR^(a), NR^(a)C(O), and S(O)_(p)NR^(a);

X^(a) is absent or C₁₋₁₀ alkylene;

R² is selected from H, C₁₋₅ alkylene-Q′, (CH₂)_(r′)O(CH₂)_(r)—Q′, (CH₂)_(r′)NR^(a)(CH₂)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q′, (CH₂)_(r′)C(O)NR^(a)(CH₂)_(r)—Q′, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q′, and (CH₂)_(r)C(O)(CH₂)_(r)—Q′;

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-9 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S; and,

Q is selected from H, a C₅₋₆ carbocyclic residue substituted with 0-5 R^(b) and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b).

[4] In a further preferred embodiment, the present invention provides a novel compound of formula I, wherein;

A is selected from —CO₂H, CH₂CO₂H, —CONHOH, and —CONHOR⁵;

ring B is a 4-5 membered cyclic amide containing from 0-2 additional heteroatoms selected from O, NR^(a), and S(O)_(p), and 0-1 additional carbonyl groups and 0-1 double bonds;

X is absent or selected from C₁₋₄ alkylene, C₂₋₄ alkenylene, and C₂₋₄ alkynylene;

Z is absent or selected from phenyl substituted with 0-3 R^(b)and a 5-9 membered aromatic heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-3 R^(b);

X^(a) is absent or C₁₋₄ alkylene;

Y^(a) is absent or selected from O and NR^(a);

Z^(a) is selected from H, a C₅₋₁₀ carbocyclic residue substituted with 0-5 R^(c) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c);

R⁴ is selected from H, C₁₋₄ alkylene-H, (CH₂)_(r′)O(CH₂)_(r)—H, and (CH₂)_(r′)NR^(a)(CH₂)_(r)—H; and,

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.

[5] In another preferred embodiment, the present invention provides novel compounds selected from:

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-(4-methoxyphenyl)-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(1-methylethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(1,1-dimethylethoxy)phenyl]-N-hydroxy-α,3dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-(4-(cyclohexyloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[4-(1,1-dimethylethyl)phenylmethoxy]phenyl]-1,1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(trans-3-phenyl-2-propenyloxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3-methylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(2-propenyloxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3-cyanophenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α-3-dimethyl-3-[4-[(2-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α-3-dimethyl-3-[4-[(3-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[(4-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[(1-naphthalenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-(4-hydroxyphenyl)-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(2-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(3-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(2-methylpropyl)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-phenyl-1-pyrrolidineacetamide;

N-hydroxy-2-oxo-3-phenyl-1-pyrrolidineacetamide;

(+/−)-N-hydroxy-3-methyl-2-oxo-3-phenyl-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α-methyl-2-oxo-3-phenyl-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-(4-methoxyphenyl)-α-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-cyclohexyl-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-(2-phenylethyl)-1-pyrrolidineacetamide;

[1(R)]-3-(2-cyclohexylethyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α-methyl-2-oxo-3-phenyl-3-(phenylmethyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3,4,4′,5′-tetrahydro-N-hydroxy-α-methyl-2-oxospiro[naphthalene-2(1H),3′-[3H]pyrrole]-N-hydroxy-α,3-acetamide;

[1(R)]-3-[4-[(3,5-dibromophenyl)methoxy]phenyl]-N-hydroxy-α,3dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dichlorophenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[(2-methyl-1-naphthalenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[4-chloro-2-(trifluoromethyl)-6-quinolinyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[[4-(1,2,3-thiadiazol-4-yl)phenyl]methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-([1,1′-biphenyl]-2-ylmethoxy)phenyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(1H-benzotriazol-1-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(4,6-dimethyl-2-pyrimidinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(1,3-benzodioxol-5-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2-chloro-6-ethoxy-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(4,5-dimethyl-2-thiazolyl)methoxy]phenyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[(3-methyl-5-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3-amino-5-methylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[3-(acetylamino)-5-methylphenyl]methoxy]phenyl]N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[2-[[3-[[4-[1-[2-(hydroxyamino)-1-methyl-2-oxo-3-pyrrolidinyl]phenoxy]methyl]-5-methylphenyl]amino]-2-oxoethyl]carbamate;

[1(R)]-3-[4-[[3-[(aminoacetyl)amino]-5-methylphenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[2-[[2-[[3-[[4-[1-[2-(hydroxyamino)-1-methyl-2-oxo-3-pyrrolidinyl]phenoxy]methyl]-5-methylphenyl]amino]-2-oxoethyl]amino]-2-oxoethyl]carbamate; [1(R)]-3-[4-[[3-[[[(aminoacetyl)amino]acetyl]amino]-5-methylphenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide; [1(R)]-N-[3-[[4-[1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-3-methyl-2-oxo-3-pyrrrolidinyl]phenoxy]methyl]-5-methylphenyl]-4-morpholinecarboxamide;

3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,α,3-trimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[1,1′-biphenyl]-4-yl-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-(2′-methyl[1,1′-biphenyl]-4-yl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-(4′-methyl[1,1′-biphenyl]-4-yl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-(3′,4′-dimethoxy[1,1′-biphenyl]-4-yl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[2′-(trifluoromethyl)[1,1′-biphenyl]-4-yl-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(4-methylphenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-(4-phenoxyphenyl)-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(2-methylphenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(3,5-dichlorophenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(3,4-dimethoxyphenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(1,3-benzodioxol-5-yloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[3-(1-methylethyl)phenoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-[4-(3-methoxyphenoxy)phenyl]-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(3-thienyloxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-(3,4,5-trimethoxyphenoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(1-naphthalenyloxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-[4-[3-[(hydroxyimino)methyl]phenoxy]phenyl]-α,3-dimethyl-2 oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-[4-[4-[1-(hydroxyimino)ethyl]phenoxy]phenyl]-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-([1,1′-biphenyl]-4-yloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(3,5-dibromophenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[3-(acetylamino)phenoxy]phenyl]-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-(4-nitrophenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-(4-methylphenyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[(2,6-dimethyl-4-pyridinyl)oxylmethyl]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-quinolinyloxy)methyl]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-(4-nitrophenyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(phenylcarbonyl)amino]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(phenylsulfonyl)amino]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[[(phenylamino)carbonyl]amino]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[4-[(1-naphthalenylmethyl)amino]phenyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-quinolinylmethyl)amino]phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[(3,5-dimethoxyphenyl)methyl]amino]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dichlorophenyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-3-[3-(phenylmethoxy)propyl]-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-3-[2-methyl-4(phenylmethoxy)phenyl]-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]-2-methylphenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-3-[2-methyl-4-(2-naphthalenylmethoxy)phenyl]-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-α-(2-methylpropyl)-3-[2-methyl-4-(4-pyridinylmethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]-2-methylphenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-α-[2-(methylthio)ethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-(3,5-dibromophenoxy)phenyl]-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetic acid;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-(3,5-dibromophenoxy)phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide

[1(R)]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

N-hydroxy-1-[3-methyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidinyl]cyclopropanecarboxamide;

[1(R)]-N-hydroxy-α-[(4-hydroxyphenyl)methyl]-3-methyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(2-hydroxyethyl)-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[5-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[1(R)]-α-(4-aminobutyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-α-[4-(acetylamino)butyl]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-[5-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl-]3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl)-3-pyridineacetamide;

[1(R)]-N-[5-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]-4-morpholinecarboxamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[4-[(methylsulphonyl)amino]butyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-α-[4-(acetylamino)butyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[5-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[1(R)]-α-(4-aminobutyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-α-[4-[(aminoacetyl)amino]butyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-α-[4-(acetylamino)butyl]-3-[4-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[5-[3-[4-(3,5-dibromophenoxy)phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[1(R)]-α-(4-aminobutyl)-3-[4-(3,5-dibromophenoxy)phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[3-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]carbamate;

[1(R)]-α-(2-aminoethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl)-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-α-[2-(acetylamino)ethyl]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]carbamate;

[1(R)]-α-(2-aminoethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

N-[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]-3-pyridinecarboxamide;

[1(R)]-N-[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl-]3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]-4-morpholinecarboxamide;

[1(R)]-1,1-dimethylethyl[2-[[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]amino]-2-oxoethyl)carbamate;

[1(R)]-α-[2-[(aminoacetyl)amino]ethyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[2-[[2-[[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]amino)-2-oxoethyl]amino]-2oxoethyl]carbamate;

[1(R)]-α-[2-[[[(aminoacetyl)amino]acetyl]amino]ethyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-methyl-2-oxo-α-[(phenylmethoxy)methyl]-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(hydroxymethyl)-3-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl4-[2-(hydroxyamino)-1-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-N-hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl)-4-piperidineacetamide;

[1(R)]-N-hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-(methylsulfonyl)-4-piperidineacetamide;

[1(R)]-1-(2-furanylcarbonyl)-N-hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-4-piperidineacetamide;

[1(R)]-1,1-dimethylethyl4-[1-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-methyl 4-[1-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide;

[1(R)]-1-acetyl-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-1-(2,2-dimethyl-1-oxopropyl)-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-methyl-4-piperidineacetamide;

[1(R)]-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(1-methylethyl)-4-piperidineacetamide;

[1(R)]-3-amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(2-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-3-[[(ethylamino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-3-[(methylsulfonyl)amino]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-[3-[4-[(3,5-dimethylphenyl)methoxy]phenyl)-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-3-pyridineacetamide;

[1(R)]-N-[3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxo-3-pyrrolidinyl]-4-pyridinecarboxamide;

[1(R)]-3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-4-pyridinecarboxamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-[[(ethylamino)carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl[2-[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]amino]-2-oxoethyl]carbamate;

[1(R)]-3-[(aminoacetyl)amino]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-3-pyridineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl)-N-hydroxy-alpha-methyl-2-oxo-3-[[[(phenylmethyl)amino]carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-[[[(2,4-dimethoxyphenyl)amino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl [3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]carbamate;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-3-[[[[2-(4-morpholinyl)ethyl]amino]carbonyl)amino]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethylN-[[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]amino]carbonyl]glycine;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[(4-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-[[[(3-hydroxyphenyl)amino]carbonyl]amino]-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-[[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[5(R)]-2-propenyl[5-[3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[5(R)]-2-propenyl[5-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[1(R)]-3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)-methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[(trifluoroacetyl)amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(phenylsulfonyl)amino]carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(phenylsulfonyl)amino]carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-[[[(3-methyl-5-isothiazolyl)amino]carbonyl]amino]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[[(1H-benzimidazol-2-ylamino)carbonyl]amino]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[[(1H-benzimidazol-2-ylamino)carbonyl]amino]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide;

[1(R)]-1-[1-[(hydroxyamino)carbonyl]-3-methylbutyl]-N,N,N-trimethyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidinemethanaminium;

[1(R)]-3-amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(2-oxo-2-phenylethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(3,5-dimethyl-4-isoxazolyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[2-(2-benzothiazolylamino)-2-oxoethoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-3-[4-[(2-methoxy-4-quinolinyl)methoxy]phenyl]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-[(2-phenyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dimethyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2-chloro-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[2-(2,5-dimethoxyphenyl)-2-(hydroxyimino)ethoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-3-[4-[(2-methylimidazo[1,2-α]pyridin-3-yl)methoxy]phenyl]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[[1,4-dimethyl-2-(methylthio)-1H-imidazol-5-yl]methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[[1,5-dimethyl-2-(methylthio)-1H-imidazol-4-yl]methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,4-dimethyl-5-thiazolyl)methoxy]phenyl)-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-alpha-(2-methylpropyl)-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2-chloro-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-3-[4-[(2-methoxy-4-quinolinyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-(aminomethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(2-thiazolylamino)carbonyl]amino]methyl]-1-pyrrolidineacetamide;

[1(R)]-3-(aminomethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[[(2-thiazolylamino)carbonyl]amino]methyl]-1-pyrrolidineacetamide;

[1(R)]-4-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha,4-dimethyl-5-oxo-1-imidazolidineacetamide;

[1-(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-3-(hydroxymethyl)-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-[3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]methyl ethylcarbamate;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(hydroxymethyl)-alpha-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha,3-dimethyl-2-oxo-1-azetidineacetamide;

[1(R)]-3-[5-[(3,5-dimethylphenoxy)methyl]-2-thiazolyl)-N-hydroxy-alpha,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-4-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2,5-dioxo-4-(2-propenyl)-1-imidazolidineacetamide;

[1(R)]-N-hydroxy-alpha,3-dimethyl-2-oxo-3-[[4-(phenylmethoxy)phenyl]methyl]-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(methylamino)-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3-(methylamino)-alpha-(2-methylpropyl)-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-alpha,3-dimethyl-N-hydroxy-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-piperidineacetamide;

[1(R)]-α-[3-amino-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-1,1-dimethylethyl 4-[1-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-3-[4-[(1,1-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide;

[1(R)]-1-acetyl-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-(2,2-dimethyl-1-oxopropyl)-N-hydroxy-4-piperidineacetamide;

(1(R)]-1,1-dimethylethyl4-[1-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-methyl 4-[1-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-methyl-4-piperidineacetamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-dimethylcarbamyl-N-hydroxy-4-piperidineacetamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-cyclopropanecarbonyl-N-hydroxy-4-piperidineacetamide;

[1(R)]-3-amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-α-cyclohexyl-N-hydroxy-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-α-cyclohexyl-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide;

3-amino-α-(1,1-dimethylethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-amino-α-(1,1-dimethylethyl)-N-hydroxy-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-α-(1,1-dimethylethyl)-N-hydroxy-2-oxo-3-[4-[(2methyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-[(2,6-dimethyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide;

[1(R)]-N-[4-[1-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidine]-4-morpholinecarboxamide;

[1(R)]-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-(2-methyl-1-oxopropyl)-N-hydroxy-4-piperidineacetamide;

[1(R)]-3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(4-methoxycyclohexyl)-2-oxo-1-pyrrolidineacetamide; [1′(R)]-N-hydroxy-1,2-dihydro-α-(1-methylethyl)-2,2′-dioxo-6-(phenylmethoxy)spiro[3H-indole-3,3′-pyrrolidine]-1′-acetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-2-oxo-3-[3-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide;

[1(R)]-3-[3-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxyα,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[3-[(3-methylphenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-α,3-dimethyl-3-[3-(1-methylethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[3-(heptyloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-1,3,4-thiadiazol-2-yl-1,3pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-3-pyrrolidineacetate;

[1(R)]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-3-pyrrolidineacetic acid;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-N3-[2-(methylamino)-2-oxoethyl]-2-oxo-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-thiazolyl-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-α-methyl-3-[2-(4-morpholinyl)-2-oxoethyl]-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-[2-(4-morpholinyl)ethyl]-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(4-pyridinylmethyl)-1,3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(3-pyridinylmethyl)-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(2-pyridinylmethyl)-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-4-pyridinyl-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-3-(3-methyl-5-isothiazolyl)-2-oxo-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N3-[5-(1,1-dimethylethyl)-1,3,4-thiadizol-2-yl]-N1-hydroxy-α1-methyl-2-oxo-1,3-pyrrolidineacetamide;

[1(R)]-1,1-dimethylethyl2-[[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]acetyl]amino]-4-thiazoleacetate;

[1(R)]-2-[[[3-[4-[(2, 6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]acetyl]amino]-4-thiazoleacetic acid;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-N3-[4-[2-(methylamino)-2-oxoethyl]-2thiazolyl]-2-oxo-1,3-pyrrolidineacetamide;

[1(R)]-3-(1H-benzimidazol-2-ylmethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(3H-imidazo(4,5-c]pyridin-2-ylmethyl)-α-methyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(4-thiazolyl-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(1-methylethyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(1-methylethyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidinediacetamide;

[1(R)]-α1-(cyclohexylmethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidinediacetamide;

[1(R)]-α1-(cyclohexylmethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidinediacetamide;

[1(R)]-1,1-dimethylethyl[5-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-3-[2-oxo-2-[(4-pyridinylmethyl)amino]ethyl]-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate;

[1(R)]-α1-(4-aminobutyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidinediacetamide;

[1(R)]-3-[3-(1H-benzotriazol-1-ylmethoxy)phenyl]-N-hydroxyα,3-dimethyl-2-oxo-1-pyrrolidineacetamide;

[1(R)]-N-hydroxy-3,4,4-trimethyl-α-[3-methyl-2-oxo-3[4-(phenylmethoxy)phenyl]-1-pyrrolidinyl]-2,5-dioxo-1-imidazolidinepropanamide

[1(R)]-1,1-dimethylethyl1-[(hydroxyamino)carbonyl]-3-methylbutyl]-2-oxo-3-[4-(phenyl]-3-pyrrolidineacetamide;

[1(R)]-N1-hydroxy-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N3-[2-(methylamino)-2-oxoethyl]-α-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-[2-(methylamino)-2-oxoethyl]-alpha1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-N3-[2-(methylamino)-2-oxoethyl]-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1 -hydroxy-α1-(2-methylpropyl)-2-oxo-N3-phenyl-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1 -hydroxy-N3-methyl-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-[2-(1H-imidazol-4-yl)ethyl]-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-[1-(phenylmethyl)-4-piperidinyl]-1,3-pyrrolidinediacetamide;

[1(R)]-M-[2-(dimethylamino)ethyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-(4-hydroxyphenyl)-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N3-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N3-hydroxy-3-(2-hydroxyethyl)-α1-(2-mehtylpropyl)-2-oxo-1-pyrrolidineacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N3-(4,5-dimethyl-2-thiazolyl)-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidinediacetamide;

[1(R)]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-1H-indazol-5-yl-α1-(2-mehtylpropyl)-2-oxo-1,3-pyrrolidinediacetamide; and,

[1(R)]-3-[-4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidinediacetamide;

or a pharmaceutically acceptable salt form thereof.

[6] In another preferred embodiment, the present invention provides a novel compound of formula I, wherein:

A is selected from COR⁵, —CO₂H, CH₂CO₂H, —CONHOH, —CONHOR⁵, —CONHOR⁶, —N(OH)COR⁵, —SH, and —CH₂SH;

ring B is a 4-7 membered cyclic amide containing from 0-3 additional heteroatoms selected from O, NR^(a), and S(O)_(p), and 0-1 additional carbonyl groups and 0-1 double bonds;

R¹ and R² combine to form a C₅₋₁₄ carbocyclic residue substituted with R¹′ and 0-3 R^(b) or a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with R¹′ and 0-3 R^(b);

Z^(a) is selected from H, a C₅₋₁₀ carbocyclic residue substituted with 0-5 R^(c) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c);

R³ is selected from H, Q, C₁₋₁₀ alkylene-Q, C₂₋₁₀ alkenylene-Q, C₂₋₁₀ alkynylene-Q, (CRR′)_(r′)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)C(O) (CRR′)_(r)—Q, (CRR′)_(r′)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—Q, and (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR′)_(r)—Q;

R, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, CH═CH₂, CH═CHCH₃, and CH₂CH═CH₂;

R′, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, and CH(CH₃)₂;

Q is selected from H, a C₃₋₁₀ carbocyclic residue substituted with 0-5 R^(b) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b);

R⁴ is selected from H;

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.

[7] In another more preferred embodiment, the present invention provides a novel compound of formula II, wherein:

A is selected from —CO₂H, CH₂CO₂H, —CONHOH, and —CONHOR⁵;

ring C is fused to ring G and is a phenyl ring or 5-6 membered aromatic heterocycle containing from 0-4 heteroatoms selected from O, N, and S(O)_(p), and ring C is substituted with 1 R¹′;

ring G is a 4-8 membered carbocylic ring substituted with 0-1 carbonyl groups

alternatively, ring G is a 4-8 membered heterocyclic ring containing from 1-2 heteroatoms selected from O and NR^(a) and subsituted with 0-2 carbonyl groups and 0-1 double bonds;

U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)NR^(a), NR^(a)C(O), and S(O)_(p)NR^(a);

X^(a) is absent or C₁₋₄ alkylene;

Y^(a) is absent or selected from O and NR^(a);

Z^(a) is selected from H, phenyl substituted with 0-5 R^(c) and a 5-9 membered aromatic heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c);

Q is selected from H, a C₅₋₆ carbocyclic residue substituted with 0-5 R^(b) and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b); and,

R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a) , Cl, F, Br, I, ═O, CN, NO₂ , NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃ , and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.

In a third embodiment, the present invention provides a novel pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt form thereof.

In a fourth embodiment, the present invention provides a novel method for treating or preventing an inflammatory disorder, comprising: administering to a patient in need thereof a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt form thereof.

In a fifth embodiment, the present invention provides a novel method of treating a condition or disease mediated by MMPs, TNF, aggrecanase, or a combination thereof in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt form thereof.

In a sixth embodiment, the present invention provides a novel method of treating a condition or disease wherein the disease or condition is referred to as rheumatoid arthritis, osteoarthritis, periodontitis, gingivitis, corneal ulceration, solid tumor growth and tumor invasion by secondary metastases, neovascular glaucoma, multiple sclerosis, or psoriasis in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt form thereof.

In a seventh embodiment, the present invention provides a novel method of treating a condition or disease wherein the disease or condition is referred to as fever, cardiovascular effects, hemorrhage, coagulation, cachexia, anorexia, alcoholism, acute phase response, acute infection, shock, graft versus host reaction, autoimmune disease or HIV infection in a mammal comprising administering to the mammal in need of such treatment a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt form thereof.

DEFINITIONS

The compounds herein described may have asymmetric centers. Compounds of the present invention containing an asymmetrically substituted atom may be isolated in optically active or racemic forms. It is well known in the art how to prepare optically active forms, such as by resolution of racemic forms or by synthesis from optically active starting materials. Many geometric isomers of olefins, C═N double bonds, and the like can also be present in the compounds described herein, and all such stable isomers are contemplated in the present invention. Cis and trans geometric isomers of the compounds of the present invention are described and may be isolated as a mixture of isomers or as separated isomeric forms. All chiral, diastereomeric, racemic forms and all geometric isomeric forms of a structure are intended, unless the specific stereochemistry or isomeric form is specifically indicated.

The term “substituted,” as used herein, means that any one or more hydrogens on the designated atom is replaced with a selection from the indicated group, provided that the designated atom's normal valency is not exceeded, and that the substitution results in a stable compound. When a substituent is keto (i.e., ═O), then 2 hydrogens on the atom are replaced. When a ring system (e.g., carbocyclic or heterocyclic) is said to be substituted with a carbonyl group or a double bond, it is intended that the carbonyl group or double bond be part (i.e., within) of the ring.

When any variable (e.g., R^(b)) occurs more than one time in any constituent or formula for a compound, its definition at each occurrence is independent of its definition at every other occurrence. Thus, for example, if a group is shown to be substituted with 0-2 R⁶, then said group may optionally be substituted with up to two R⁶ groups and R⁶ at each occurrence is selected independently from the definition of R⁶. Also, combinations of substituents and/or variables are permissible only if such combinations result in stable compounds.

When a bond to a substituent is shown to cross a bond connecting two atoms in a ring, then such substituent may be bonded to any atom on the ring. When a substituent is listed without indicating the atom via which such substituent is bonded to the rest of the compound of a given formula, then such substituent may be bonded via any atom in such substituent. Combinations of substituents and/or variables are permissible only if such combinations result in stable compounds.

As used herein, “alkyl” is intended to include both branched and straight-chain saturated aliphatic hydrocarbon groups having the specified number of carbon atoms. Examples of alkyl include, but are not limited to, methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, t-butyl, n-pentyl, and s-pentyl. “Haloalkyl” is intended to include both branched and straight-chain saturated aliphatic hydrocarbon groups having the specified number of carbon atoms, substituted with 1 or more halogen (for example —C_(v)F_(w) where v=1 to 3 and w=1 to (2v+1)). Examples of haloalkyl include, but are not limited to, trifluoromethyl, trichloromethyl, pentafluoroethyl, and pentachloroethyl. “Alkoxy” represents an alkyl group as defined above with the indicated number of carbon atoms attached through an oxygen bridge. Examples of alkoxy include, but are not limited to, methoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, s-butoxy, t-butoxy, n-pentoxy, and s-pentoxy. “Cycloalkyl” is intended to include saturated ring groups, such as cyclopropyl, cyclobutyl, or cyclopentyl. “Alkenyl” is intended to include hydrocarbon chains of either a straight or branched configuration and one or more unsaturated carbon-carbon bonds which may occur in any stable point along the chain, such as ethenyl and propenyl. “Alkynyl” is intended to include hydrocarbon chains of either a straight or branched configuration and one or more triple carbon-carbon bonds which may occur in any stable point along the chain, such as ethynyl and propynyl.

“Halo” or “halogen” as used herein refers to fluoro, chloro, bromo, and iodo; and “counterion” is used to represent a small, negatively charged species such as chloride, bromide, hydroxide, acetate, sulfate, and the like.

As used herein, “carbocycle” or “carbocyclic residue” is intended to mean any stable 3- to 7-membered monocyclic or bicyclic or 7- to 13-membered bicyclic or tricyclic, any of which may be saturated, partially unsaturated, or aromatic. Examples of such carbocycles include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, adamantyl, cycloctyl, [3.3.0]bicyclooctane, [4.3.0]bicyclononane, [4.4.0]bicyclodecane (decalin), [2.2.2]bicyclooctane, fluorenyl, phenyl, naphthyl, indanyl, adamantyl, or tetrahydronaphthyl (tetralin).

As used herein, the term “heterocycle” or “heterocyclic system” is intended to mean a stable 5- to 7-membered monocyclic or bicyclic or 7- to 14-membered bicyclic heterocyclic ring which is saturated partially unsaturated or unsaturated (aromatic), and which consists of carbon atoms and from 1 to 4 heteroatoms independently selected from the group consisting of N, O and S and including any bicyclic group in which any of the above-defined heterocyclic rings is fused to a benzene ring. The nitrogen and sulfur heteroatoms may optionally be oxidized. The heterocyclic ring may be attached to its pendant group at any heteroatom or carbon atom which results in a stable structure. The heterocyclic rings described herein may be substituted on carbon or on a nitrogen atom if the resulting compound is stable. If specifically noted, a nitrogen in the heterocycle may optionally be quaternized. It is preferred that when the total number of S and O atoms in the heterocycle exceeds 1 , then these heteroatoms are not adjacent to one another. It is preferred that the total number of S and O atoms in the heterocycle is not more than 1. As used herein, the term “aromatic heterocyclic system” is intended to mean a stable 5- to 7-membered monocyclic or bicyclic or 7- to 14-membered bicyclic heterocyclic aromatic ring which consists of carbon atoms and from 1 to 4 heterotams independently selected from the group consisting of N, O and S. It is preferred that the total number of S and O atoms in the aromatic heterocycle is not more than 1.

Examples of heterocycles include, but are not limited to, acridinyl, azocinyl, benzimidazolyl, benzofuranyl, benzothiofuranyl, benzothiophenyl, benzoxazolyl, benzthiazolyl, benztriazolyl, benztetrazolyl, benzisoxazolyl, benzisothiazolyl, benzimidazolinyl, carbazolyl, 4aH-carbazolyl, carbolinyl, chromanyl, chromenyl, cinnolinyl, decahydroquinolinyl, 2H,6H-1,5,2-dithiazinyl, dihydrofuro-[2,3-b]-tetrahydrofuran, furanyl, furazanyl, imidazolidinyl, imidazolinyl, imidazolyl, 1H-indazolyl, indolenyl, indolinyl, indolizinyl, indolyl, 3H-indolyl, isobenzofuranyl, isochromanyl, isoindazolyl, isoindolinyl, isoindolyl, isoquinolinyl, isothiazolyl, isoxazolyl, methylenedioxyphenyl, morpholinyl, naphthyridinyl, octahydroisoquinolinyl, oxadiazolyl, 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, 1,3,4-oxadiazolyl, oxazolidinyl, oxazolyl, oxazolidinyl, pyrimidinyl, phenanthridinyl, phenanthrolinyl, phenazinyl, phenothiazinyl, phenoxathiinyl, phenoxazinyl, phthalazinyl, piperazinyl, piperidinyl, pteridinyl, purinyl, pyranyl, pyrazinyl, pyrazolidinyl, pyrazolinyl, pyrazolyl, pyridazinyl, pyridooxazole, pyridoimidazole, pyridothiazole, pyridinyl, pyridyl, pyrimidinyl, pyrrolidinyl, pyrrolinyl, 2H-pyrrolyl, pyrrolyl, quinazolinyl, quinolinyl, 4H-quinolizinyl, quinoxalinyl, quinuclidinyl, tetrahydrofuranyl, tetrahydroisoquinolinyl, tetrahydroquinolinyl, 6H-1,2,5-thiadiazinyl, 1,2,3-thiadiazolyl, 1,2,4-thiadiazolyl, 1,2,5-thiadiazolyl, 1,3,4-thiadiazolyl, thianthrenyl, thiazolyl, thienyl, thienothiazolyl, thienooxazolyl, thienoimidazolyl, thiophenyl, triazinyl, 1,2,3-triazolyl, 1,2,4-triazolyl, 1,2,5-triazolyl, 1,3,4-triazolyl, and xanthenyl. Preferred heterocycles include, but are not limited to, pyridinyl, furanyl, thienyl, pyrrolyl, pyrazolyl, pyrrolidinyl, imidazolyl, indolyl, benzimidazolyl, 1H-indazolyl, oxazolidinyl, benzotriazolyl, benzisoxazolyl, oxindolyl, benzoxazolinyl, and isatinoyl. Also included are fused ring and spiro compounds containing, for example, the above heterocycles.

The term “amino acid” as used herein means an organic compound containing both a basic amino group and an acidic carboxyl group. Included within this term are natural amino acids (e.g., L-amino acids), modified and unusual amino acids (e.g., D-amino acids), as well as amino acids which are known to occur biologically in free or combined form but usually do not occur in proteins. Included within this term are modified and unusual amino acids,such as those disclosed in, for example, Roberts and Vellaccio (1983) The Pestides, 5: 342-429, the teaching of which is hereby incorporated by reference. Natural protein occurring amino acids include, but are not limited to, alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, serine, threonine, tyrosine, tyrosine, tryptophan, proline, and valine. Natural non-protein amino acids include, but are not limited to arginosuccinic acid, citrulline, cysteine sulfinic acid, 3,4-dihydroxyphenylalanine, homocysteine, homoserine, ornithine, 3-monoiodotyrosine, 3,5-diiodotryosine, 3,5,5′-triiodothyronine, and 3,3′,5,5,′-tetraiodothyronine. Modified or unusual amino acids which can be used to practice the invention include, but are not limited to, D-amino acids, hydroxylysine, 4-hydroxyproline, an N-Cbz-protected amino acid, 2,4-diaminobutyric acid, homoarginine, norleucine, N-methylaminobutyric acid, naphthylalanine, phenylglycine, β-phenylproline, tert-leucine, 4-aminocyclohexylalanine, N-methyl-norleucine, 3,4-dehydroproline, N,N-dimethylaminoglycine, N-methylaminoglycine, 4-aminopiperidine-4-carboxylic acid, 6-aminocaproic acid, trans-4-(aminomethyl)-cyclohexanecarboxylic acid, 2-, 3-, and 4-(aminomethyl)-benzoic acid, 1-aminocyclopentanecarboxylic acid, 1-aminocyclopropanecarboxylic acid, and 2-benzyl-5-aminopentanoic acid.

The phrase “pharmaceutically acceptable” is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.

As used herein, “pharmaceutically acceptable salts” refer to derivatives of the disclosed compounds wherein the parent compound is modified by making acid or base salts thereof. Examples of pharmaceutically acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids; and the like. The pharmaceutically acceptable salts include the conventional non-toxic salts or the quaternary ammonium salts of the parent compound formed, for example, from non-toxic inorganic or organic acids. For example, such conventional non-toxic salts include those derived from inorganic acids such as hydrochloric, hydrobromic, sulfuric, sulfamic, phosphoric, nitric and the like; and the salts prepared from organic acids such as acetic, propionic, succinic, glycolic, stearic, lactic, malic, tartaric, citric, ascorbic, pamoic, maleic, hydroxymaleic, phenylacetic, glutamic, benzoic, salicylic, sulfanilic, 2-acetoxybenzoic, fumaric, toluenesulfonic, methanesulfonic, ethane disulfonic, oxalic, isethionic, and the like.

The pharmaceutically acceptable salts of the present invention can be synthesized from the parent compound which contains a basic or acidic moiety by conventional chemical methods. Generally, such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two; generally, nonaqueous media like ether, ethyl acetate, ethanol, isopropanol, or acetonitrile are preferred. Lists of suitable salts are found in Remington's Pharmaceutical Sciences, 17th ed., Mack Publishing Company, Easton, Pa., 1985, p. 1418, the disclosure of which is hereby incorporated by reference.

Since prodrugs are known to enhance numerous desirable qualities of pharmaceuticals (e.g., solubility, bioavailability, manufacturing, etc . . . ) the compounds of the present invention may be delivered in prodrug form. Thus, the present invention is intended to cover prodrugs of the presently claimed compounds, methods of delivering the same and compositions containing the same. “Prodrugs” are intended to include any covalently bonded carriers which release an active parent drug of the present invention in vivo when such prodrug is administered to mammalian subject. Prodrugs the present invention are prepared by modifying functional groups present in the compound in such a way that the modifications are cleaved, either in routine manipulation or in vivo, to the parent compound. Prodrugs include compounds of the present invention wherein a hydroxy, amino, or sulfhydryl group is bonded to any group that, when the prodrug of the present invention is administered to a mammalian subject, it cleaves to form a free hydroxyl, free amino, or free sulfhydryl group, respectively. Examples of prodrugs include, but are not limited to, acetate, formate and benzoate derivatives of alcohol and amine functional groups in the compounds of the present invention.

“Stable compound” and “stable structure” are meant to indicate a compound that is sufficiently robust to survive isolation to a useful degree of purity from a reaction mixture, and formulation into an efficacious therapeutic agent.

SYNTHESIS

The compounds of the present invention can be prepared in a number of ways well known to one skilled in the art of organic synthesis. The compounds of the present invention can be synthesized using the methods described below, together with synthetic methods known in the art of synthetic organic chemistry, or variations thereon as appreciated by those skilled in the art. Preferred methods include, but are not limited to, those described below. All references cited herein are hereby incorporated in their entirety herein by reference.

The novel compounds of this invention may be prepared using the reactions and techniques described in this section. The reactions are performed in solvents appropriate to the reagents and materials employed and are suitable for the transformations being effected. Also, in the description of the synthetic methods described below, it is to be understood that all proposed reaction conditions, including choice of solvent, reaction atmosphere, reaction temperature, duration of the experiment and workup procedures, are chosen to be the conditions standard for that reaction, which should be readily recognized by one skilled in the art. It is understood by one skilled in the art of organic synthesis that the functionality present on various portions of the molecule must be compatible with the reagents and reactions proposed. Such restrictions to the substituents which are compatible with the reaction conditions will be readily apparent to one skilled in the art and alternate methods must then be used.

A series of γ-lactams of formula 10 are prepared by the method outlined in Scheme 1 and 2. R¹-substituted methyl acetate 1 is deprotonated to form enolate using bases such as sodium bis(trimethylsilyl)amide, lithium N,N-diisopropylamide, and sodium hydride. Alkylation with R²—X provides 2. Further alkylation with allyl bromide under similar basic conditions gives ester 3. The olefin in 3 is then cleaved by ozonolysis or by dihydroxylation (OsO₄/NMO) followed by diol cleavage (NaIO4) to give aldehyde 4. Treatment of the aldehyde 4 and D-amino acid 5 with zinc in acetic acid at elevated temperature leads to reductive amination and lactamization to give γ-lactam 7. The γ-lactamization gives a mixture of two diastereomers epimeric at the quaternary center. The diastereomers of 7 are either separated or taken to the next step as a mixture.

Alternatively, aldehyde 4 is converted to lactam 7 through a stepwise sequence. Condensation of 4 with amino ester 5 through reductive amination provides secondary amine 6. The reductive amination can be affected with reagents such as sodium borohydride, sodium cyanoborohydride, and sodium triacetoxyborohydride. Amine 6 is converted to 7 via thermally induced lactamization or methyl ester hydrolysis followed by amide bond formation using reagents such as BOP.

Lactam 7 can also be prepared from ester 3 through the carboxylic acid 8. Acid 8 and amino ester 5 can be coupled using standard peptide coupling reagents well known in the literature such as DCC, BOP, and TBTU (Bodanszky, M. in Peptide Chemistry A Practical Textbook, 2nd ed. Springer-Verlag, New York, 1993). Olefin degradation (O₃/PPh₃, or OsO₄/NaIO₄)-and deoxygenation (Et₃SiH/CF₃COOH) gives lactam 7.

Many of the D-amino acid derivatives 5 are commercially available or are prepared from the commercial material by simple protecting group manipulations. Others are synthesized from glycine using Myers method (Myers, A. G.; Gleason, J. L.; Yoon, T. J. Am. Chemr. Soc. 1995, 117, 8488), from serine using Mitsunobu reactions (Cherney, R. J.; Wang, L. J. Org. Chem. 1996, 61, 2544), or using Evans electrophilic azidations (Evans, D. A.; Britton, T. C.; Ellman, J. A.; Dorow, R. L. J. Am. Chem. Soc. 1990, 112, 4011).

The methyl ester of 7 (R¹¹═Me) is converted to hydroxamic acid 10 by treatment with hydroxylamine under basic conditions (KOH or NaOMe) in methanol (Scheme 2). The methyl ester 7 (R¹¹═Me) can also be converted to benzyl protected hydroxamic acid with O-benzylhydroxylamine using Weinreb's trimethylalluminum conditions (Levin, J. I.; Turos, E.; 10 Weinreb, S. M. Syn. Commun. 1982, 12, 989) or Roskamp's bis[bis(trimethylsilyl)amido]tin reagent (Wang, W.-B.; Roskamp, E. J. J. Org. Chem. 1992, 57, 6101). Hydrogenolysis then provides the hydroxamic acid 10. Alternatively, 10 can be prepared through the carboxylic intermediate 11. Carboxylic acid 11 is converted to 10 via coupling with hydroxylamine or NH2OBn followed by deprotection.

A variety of ethers of 4-hydroxyphenyllactam 13 are prepared using intermediate 7 when R¹ is benzyloxyphenyl group (Scheme 3). Removal of benzyl protecting group followed by alkylation with R⁴—X produces 13. The alkylation can be affected with bases such as K₂CO₃, Cs₂CO₃, NaH, and t-BuOK. Ester 13 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of phenyllactams of formula 15 is prepared following the sequence outlined in Scheme 4. Starting from 7 when R¹ methyl group, radical bromonation with N-bromosuccinimide gives bromide 14. Alkylation of 14 with ROH under basic conditions gives 15. Ester 15 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of phenyllactams of formula 17 is prepared following the sequence outlined in Scheme 5. Reaction of 12 with triflic anhydride provides triflate 16. Palladium-mediated coupling of 16 under Stille or Suzuki conditions provides 17. Alternatively, 16 reacts with lower or higher-order cuprates to give 17. Ester 17 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

A variety of heterocyclic substituted lactams are prepared from 7 when R¹ is carbobenzyloxy group. As a representative example, scheme 6 illustrates the synthesis of the benzimidazole series. Following hydrogenolysis of 7, the resultant acid 18 is coupled with diamine 19 with coupling reagents such as BOP-Cl. Upon heating of 20 in acetic acid, benzimidazole 21 is formed. Ester 21 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

A series of isoxazole-substituted lactams of formula 26 is prepared using common intermediate 18 following the sequence outlined in Scheme 7. The carboxylic acid 18 is converted to aldehyde 23 by hydroboration and Swern oxidation. Oxime formation, in situ oxidation and [3+2] dipolar cycloaddition with acetylene 25 provides isoxazole 26. Ester 26 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of lactams of formula 30 with an oxadiazole substituent at the a position is prepared using common intermediate 18 following the sequence outlined in Scheme 8. Acid 18 is first coupled with hydrazine to give 27. Condensation with aldehyde 28 and oxidative cyclization with PhI(OAc)₂ provided oxadiazole 30 (Yang, R. Y.; Dai, L. X. J. Org. Chem. 1993, 58, 3381). Ester 30 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of lactams of formula 38 with an aminothiazole substituent at the a position is prepared following the sequence outlined in Scheme 9. Consecutive alkylations with bromoacetaldehyde dimethyl acetal and R²—X gives 33. Reaction of 33 with D-amino acid 5 using zinc in acetic acid provides lactam 34. Bromoketone 36 is obtained from 34 by Wacker oxidation and bromonation. Treatment of bromoketone 36 with thiourea produces aminothiazole 37 (Markees, D. G.; Burger, A. L. Am. Chem. Soc. 1948, 70, 3329). Alkylation with R⁴—X then provides 38. Ester 38 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of lactams of formula 42 with an imidazole substituent at the α position is prepared following the sequence outlined in Scheme 10. Consecutive alkylations with bromoacetaldehyde dimethyl acetal and R²—X gives 41. Reaction of 41 with D-amino acid 5 using zinc in acetic acid provides lactam 42. Ester 42 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

A series of succinimides of formula 45 is prepared from intermediate 4 (Scheme 11). The synthesis entails oxidation to carboxylic acid 43, coupling with amino acid 5, and succinimide formation. Ester 45 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

A series of spirolactams of formula 49 is prepared from 46 (Scheme 12). The synthetic sequence is analogous to the strategy in Scheme 1. Ester 49 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

A variety of compounds of formula (I) wherein R² is NHR can be prepared by methods described in Scheme 13. The p-hydroxyglycine acid was converted to the methyl ester using methanol and HCl to give compound 51, which was converted to the N-Boc protected amino acid 52 by methods described in the literature. The p-benzyloxyphenylglcine compound 53 was prepared by reacting the phenol compound 52 with benzyl bromide in acetone with a base such as potassium carbonate. The 2-allyl phenyl acetic acid compound 54, was prepared by treating compound 53 with LDA (2 eq) and allyl bromide. The olefin compound 54 is oxidized to the aldehyde compound 55 using ozone and triphenylphosphine, then reacted with an appropriate amine to give the imine, which can be reduced with reagent similar to sodium triacetoxyborohydride, to give the amine compound 56. The γ-lactam compound 57 is prepared by heating the amine compound 56 in an appropriate solvent such as toluene. The benzyl ether is removed by methods well known in the literature such as hydrogenation using palladium on carbon in hydrogen, to give compound 58. The compound 59 is prepared by reacting the phenol 58 with an appropriately substituted halide or the like in acetone with a base such as potassium carbonate. The hydroxamic acid compound 61 was prepared from compound 59 by methods well known in the literature for removing N-Boc groups and conversion of the methyl ester previously described. Alternatively the amine compound 60 can be treated with appropriately substituted acid chloride, isocyanate, carboxylic acid with coupling agents such as carbonyldiimidazole or the like, which are well known in the literature for making amide bonds. Alternatively the amine of compound 60 can be converted to an isocyanate by a variety of methods known in the literature like using phosgene and a base such as sodium carbonate, and reacting this with an appropriately substituted amine, to give compound 62. The hydroxamic acid was prepared by methods previously described.

A variety of compounds of formula (I) wherein the lactam is a six member ring can be prepared by methods described in Scheme 14. The ester compound 64 is converted to the acid compound 65 by methods well known in the literature, such as lithium hydroxide in methanol water, then coupled to an appropriately substituted amine by methods well described in the literature for making amide bonds, such as TBTU and N-methyl morpholine in DMF, to give compound 66. The hydroxy compound 67 was prepared from the olefin compound 66 by reduction with 9-BBN and oxidative workup with hydrogen peroxide. The δ-lactam 69 is prepared by converting the hydroxy of compound 67 to a leaving group by methods well known in the literature such as carbon tetrabromide and triphenylphosphine in methylene chloride. The bromide compound 68 was reacted with a base such as sodium hydride in THF to give the δ-lactam 69. The hydroxamic acid compound 70 was prepared by methods previously described.

A variety of compounds of formula (I) wherein the lactam is a four member ring can be prepared by methods described in Scheme 15. The ester compound 71 was converted to the acid compound 72 and coupled to an appropriately substituted amine by methods well known in the literature and previously described. The β-lactam 75 is prepared by converting the hydroxy of compound 73 to a leaving group by methods well known in the literature, such as methanesulfonyl chloride and potassium carbonate in pyridine. The methanesulfonate compound 74 was reacted with a base such as potassium carbonate in acetone to give the β-lactam 75. The hydroxamic acid compound 77 was prepared by methods previously described.

A variety of compounds of formula (I) wherein the lactam is replaced with a hydantoin ring can be prepared by methods described in Scheme 16. The amine compound 78 was prepared from the N-Boc compound 54 by methods previously described for the removal of Boc protecting groups. The urea compound 79 was prepared by converting the amine compound 78 to an isocyanate by methods well known in the literature and previously described, such as triphosgene and DIEA in methylene chloride and reacting this with an appropriately substituted amine. Alternatively, the amine 78 can be reacted with an isocyanate which is commercially available or can be prepared as described above. The hydantoin compound 80 was prepared by reacting the urea compound 79 with potassium carbonate in acetone. The final hydroxamic acid compound 81 was prepared by methods well documented previously.

A variety of compounds of formula (I) wherein the lactam is replaced with a aminomethylene lactam ring can be prepared by methods described in Scheme 17. The diamino acid compound 84 was prepared from the 2-methyl phenylglycine compound 82, by hydrolysis to the acid and coupling to an appropriately substituted amine a well described in the literature and previously detailed. The N-Boc group is remove by conventional methods previously described to give the amine compound 85. The heterocyclic compound 86 was prepared by reacting the amine compound 85 with paraformaldehyde in toluene at elevated temperatures. The final hydroxamic acid compound 87 was prepared by methods well documented previously.

A variety of compounds of formula (I) wherein R² is CH₂NHR can be prepared by methods described in Scheme 18. The cyanoacetate compound 89 was prepared by reacting the p-hydroxyphenylacetonitrile with benzyl bromide in acetone with potassium carbonate to give compound 88, which was in turn reacted with sodium ethoxide and diethylcarbonate in toluene at elevated temperatures. The allyl cyanoacetate compound 90 was prepared from the cyanoacetate compound 89 by generating the anion with a base such as sodium hydride and reacting this with allyl bromide in DMF. The nitrile lactam compound 94 was prepared by a sequence of steps previously described in several other Schemes. The N-Boc methyleneamine compound 96 was prepared by reduction of the nitrile lactam compound 94, using palladium on carbon with HCl in methanol, to give the amino compound 95 which was then protected by conventional methods with a Boc group to give compound 96. The final hydroxamic acid compounds 99 and 101 were prepared by methods previously described.

A variety of compounds of formula (I) wherein R² is CH₂OH can be prepared by methods described in Scheme 19. The allyl compound 104 was prepared from p-hydroxyphenyl acetate, by reaction with benzyl bromide and potassium carbonate in acetone as previously described and then treating the benzyloxy phenyl acetate compound 103 with LDA and allyl bromide in THF. The methylene hydroxy compound 105 was prepared by treating the benzyloxy phenyl acetate compound 103 with paraformaldehyde and sodium methoxide in DMSO. The hydrolysis of the ester and coupling of the carboxylic acid to an appropriately substituted amine was described earlier to give the compound 107. The protected O-silyl compound 108 was prepared by methods well described in the literature, then oxidation to the aldehyde compound 109 with ozone was described previously. The lactam compound 110 was prepared from the aldehyde compound 109 by treatment with triethyl silane and TFA in methylene chloride at ambient temperatures. The final hydroxamic acid compound 112 was prepared by methods previously described.

A variety of compounds of formula (I) wherein R¹ is a heterocycle, such as thiophene, can be prepared by methods described in Scheme 20. The thiophene substituted compound 115 was prepared by treating the thiophene acetate compound 113 with LDA and allyl bromide to give compound 114, and subsequently with LDA and methyl iodide in THF. The thiophene compound 117 was prepared by methods previously detailed for ester hydrolysis to the acid and coupling the carboxylic acid to an amine. The oxidation of the olefin compound 117, to the aldehyde compound 118, was performed by the action of osmium tetraoxide and NMMO, to give the diol, then treatment with NaIO4. The formation of the lactam ring compound 119 was previously described using triethylsilane and TFA in methylene chloride. The aldehyde thiophene compound 120 was prepared by chemistry well described in the literature, using phosphorus oxychloride in DMF. The aldehyde compound 120 was reacted with sodium borohydride in methanol to give alcohol compound 121 which was reacted with carbon tetrabromide and triphenyl phosphine to give the bromide compound 122. The bromide was treated with phenol and potassium carbonate in acetone to give the phenyl ether compound 123. The final hydroxamic acid compound 124 was prepared by methods previously described.

Another series of lactams of formula 135 is prepared following the sequence outlined in Scheme 21. Ester 124 is alkylated with t-butyl bromnoacetate to give 126. Ester 126 is converted to 132 following previously described sequence. Removal of t-butyl group and coupling with NH₂R′ under literature well known conditions gives 134. Ester 134 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

Another series of spirolactams of formula 140 is prepared following the sequence outlined in Scheme 22. Reaction of 136 with dimethyl malonate via S_(NAr) replacement gives diester 137. Aldehyde 139 is prepared from 137 by allylation and ozonolysis. Reaction of aldehyde 139 with 5 gives secondary amine under reductive amination conditions. Treatment with zinc in acetic acid under reflux affects nitro reduction and spirocyclization in one pot to give 140. Ester 140 is converted to the hydroxamic acid following the sequences outlined in Scheme 2.

One diasteriomer of a compound of Formula I may display superior activity compared with the others. Thus, the following stereochemistries are considered to be a part of the present invention.

When required, separation of the racemic material can be achieved by HPLC using a chiral column or by a resolution using a resolving agent such as camphonic chloride as in Steven D. Young, et al, Antimicrobial Agents and Chemotheraphy 1995, 2602-2605. A chiral compound of Formula I may also be directly synthesized using a chiral catalyst or a chiral ligand, e.g., Andrew S. Thompson, et al, Tet. lett. 1995, 36, 8937-8940).

Other features of the invention will become apparent in the course of the following descriptions of exemplary embodiments which are given for illustration of the invention and are not intended to be limiting thereof.

EXAMPLES

Abbreviations used in the Examples are defined as follows: “1×” for once, “2×” for twice, “3×” for thrice, “° C.” for degrees Celsius, “eq” for equivalent or equivalents, “g” for gram or grams, “mg” for milligram or milligrams, “mL” for milliliter or milliliters, “¹H” for proton, “h” for hour or hours, “M” for molar, “min” for minute or minutes, “MHz” for megahertz, “MS” for mass spectroscopy, “NMR” for nuclear magnetic resonance spectroscopy, “rt” for room temperature, “tlc” for thin layer chromatography, “v/v” for volume to volume ratio. “α”, “β”, “R” and “S” are stereochemical designations familiar to those skilled in the art.

Example 1 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

(1a) A 1.0 M tetrahydrofuran solution of sodium bis(trimethylsilyl)amide (254 mL, 1.3 eq) was added over 1 h to methyl 4-benzyloxyphenylacetate (50.00 g, 195 mmol) in tetrahydrofuran (600 mL) at −78° C. After 1 h at −78° C., iodomethane (18.2 mL, 1.5 eq) was added. After 2 h at −20° C., saturated ammonium chloride (400 mL), water (600 mL), ether (500 mL) and hexane (500 mL) were added. The two phases were separated and the aqueous phase extracted with 1:1 (v/v) ether-hexane (2×650 mL). The combined organic extracts were washed successively with water (2×500 mL), brine (400 mL) and dried (MgSO4). Removal of solvent in vacuo provided the desired product (49.58 g, 94%) as a yellow viscous oil. MS found: (M+NH₄)⁺=288.

(1b) Following a procedure analogous to (1a), the material from (1a) (48.66 g, 180 mmol) was treated with 1.0 M tetrahydrofuran solution of sodium bis(trimethylsilyl)amide (234 mL, 1.3 eq) at −78° C. and alkylated with allyl bromide (23.4 mL, 1.5 eq) at −20° C. Workup and concentration gave the desired product (54.77 g, 98%) as a pale yellow solid. MS found: (M+H)⁺=311, (M+NH₄)⁺=328.

(1c) Ozone was bubbled through a solution of the olefin from (1b) (54.0 g, 174 mmol) in dichloromethane (500 mL) at −78° C. until starting material disappeared by TLC. The mixture was purged with nitrogen and treated with triphenylphosphine (54.77 g, 1.2 eq). After 1 h at ambient temperature, the mixture was concentrated in vacuo. The residue was purified by short silica gel column (ethyl acetate-hexane, 20:80) to give the desired aldehyde (44.65 g, 82%) as a white solid. MS found: (M+H)⁺=313, (M+NH₄)⁺=330.

(1d) Zinc powder (93.74 g, 10 eq) was added in several portions to the aldehyde from (1c) (44.73 g, 143 mmol) and D-alanine methyl ester hydrochloride (22.00 g, 1.1 eq) in acetic acid (1 L) at 5-10° C. The mixture was heated-to reflux for 4 h and then cooled to rt. Following addition of chloroform (1 L), the mixture was filtered and the solid residue washed with 1:1 ethanol-chloroform (500 mL). Following removal of solvent in vacuo, ethyl acetate (1 L) was added and the precipitate was removed by filtration. The filtrate was concentrated and purified by silica gel chromatography (ethyl acetate-hexane, 35:65 then 40:60 then 60:40) to give a 1:1 mixture of lactams (42.30 g, 81%). The mixture was separated by repeated silica gel chromatography (ethyl acetate-hexane, 40:60). MS found: (M+H)⁺=368.

(1e) Preparation of hydroxylamine/potassium hydroxide solution: A solution of potassium hydroxide (2.81 g, 1.5 eq) in methanol (7 mL) was added to a hot solution of hydroxylamine hydrochloride (2.34 g, 33.7 mmol) in methanol (12 mL). After the mixture was cooled to room temperature, the precipitate was removed by filtration. The filtrate was used fresh and assumed hydroxylamine concentration of 1.76 M.

The freshly prepared 1.76 M solution of hydroxylamine (2.3 mL, 4 eq) was added to the less polar isomer from (1d) (369.2 mg, 1.00 mmol) in methanol (2 mL) at rt. After 1 h at this temperature, same portion of hydroxylamine was added and the mixture was stirred for additional 30 min. Upon acidification to pH 4-5 with 1 N HCl, the desired hydroxamic acid precipitated out. The product was collected by filtration and washed with water (3×) to give a white solid (322.6 mg, 87%). MS found: (M−H)⁻=367.

(1f) Following a procedure analogous to (1e), the more polar isomer from (1d) (378.6 mg, 1.03 mmol) was reacted with hydroxylamine. After adjusting to pH 4 with 1 N HCl, methanol was removed in vacuo. The aqueous residue was extracted with ethyl acetate, dried (MgSO₄) and concentrated. Silica gel chromatography (methanol-dichloromethane, 5:95 then 10:90) provided the desired hydroxamic acid (84.0 mg, 22%) as a white solid. MS found: (M−H)⁻=367.

Example 2 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-(4-methoxyphenyl)-1-pyrrolidineacetamide

(2a) A 1.0 M tetrahydrofuran solution of sodium bis(trimethylsilyl)amide (139 mL, 1.1 eq) and methyl 4-methoxyphenylacetate (20.0 mL, 126 mmol) were added successively to tetrahydrofuran (500 mL) at −78° C. After 1 h at −78° C., allyl bromide (16.4 mL, 1.5 eq) was added. After 1.5 h at −78° C., the cold bath was removed and the mixture stirred at ambient temperature for 1 h. Following addition of saturated ammonium chloride (200 mL), water (800 mL), and hexane (1000 mL), the two phases were separated and the aqueous phase extracted with hexane (2×500 mL). The combined organic extracts were washed successively with water (2×100 mL), brine (100 mL), dried (MgSO₄) and concentrated to provide the product (28.00 g) as a yellow liquid. This material was used in the subsequent reaction without purification.

(2b) Following a procedure analogous to (1a), the crude material from (2a) (8.20 g) was reacted with potassium bis(trimethylsilyl)amide and iodomethane to yield the desired product (8.50 g, 97%) as a yellow oil. MS found: (M+H)⁺=235, (M+NH₄)⁺=252.

(2c) Ozone was bubbled through a solution of the olefin from (2b) (8.40 g, 35.85 mmol) in dichloromethane (500 mL) at −78° C. until the solution turned blue. The mixture was purged with nitrogen, treated with dimethyl sulfide (13.1 mL, 5 eq) and stirred at rt overnight. Concentration in vacuo provided crude aldehyde (10.65 g). The material was used in the subsequent reaction without purification.

(2d) Following a procedure analogous to (1d), the aldehyde from (2c) (6.36 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 35:65 then 40:60) gave less polar lactam (630 mg), more polar lactam (1.12 g), and a 5:3 mixture of the two isomers (1.17 g). The total yield of the two isomers is 2.92 g (47% for two steps). MS found: (M+H)⁺=292.

(2e) Following a procedure analogous to (1e), the less polar isomer from (2d) (226.8 mg, 0.778 mmol) was reacted with hydroxylamine. Preparative thin layer chromatography (methanol-dichloromethane, 10:90) gave the hydroxamic acid (183.3 mg, 81%) as a light yellow powder. MS found: (M−H)⁻=291.

(2f) Following a procedure analogous to (1e), the more polar isomer from (2d) (197.0 mg, 0.676 mmol) was reacted with hydroxylamine. Preparative thin layer chromatography (methanol-dichloromethane, 10:90) gave the hydroxamic acid (158.4 mg, 80%) as a light yellow powder. MS found: (M−H)⁻=291.

Example 3 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-(1-methylethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

(3a) A 1:1 mixture of the benzyl ether from (1d) (16.26 g, 44.25 mmol), 20% palladium hydroxide on carbon (3.0 g) and methanol (500 mL) was stirred under balloon pressure hydrogen for 2 h. The catalyst was removed by filtration. The filtrate was concentrated to give the phenol (11.87 g, 97%) as a 1:1 mixture of two isomers. MS found: (M+H)⁺=278.

(3b) A mixture of the phenol from (3a) (460 mg, 1.66 mmol) and N,N′-dimethyl-O-isopropylisourea (5 mL) was heated to 70° C. for 4 h and then cooled to rt. Following addition of acetic acid (2 mL) and dichloromethane (2 mL), the mixture was stirred for 30 min. The mixture was then filtered through a silica gel pad and the filter cake washed with ethyl acetate-hexane (40:60). The filtrate was concentrated and purified by silica gel chromatography (ethyl acetate-hexane, 40:60) to give the isopropyl ether (123.2 mg, 23%) as a 1:1 mixture of two isomers. MS found: (M+H)⁺=320.

(3c) Following a procedure analogous to (1e), the isopropyl ether from (3b) (99.1 mg, 0.310 mmol) was reacted with hydroxylamine to give the hydroxamic acid (29.1 mg, 29%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=319.

Example 4 [1(R)]-3-[4-(1,1-Dimethylethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(4a) Following a procedure analogous to (3b), the phenol from (3a) (270 mg, 0.97 mmol) was reacted with N,N′-dimethyl-O-t-butylisourea. Silica gel chromatography (ethyl acetate-hexane, 20:80) gave the t-butyl ether (50.2 mg, 15%) as a 1:1 mixture of two isomers. MS found: (M+H)⁺=334.

(4b) Following a procedure analogous to (1e), the t-butyl ether from (4a) (45 mg, 0.135 mmol) was reacted with hydroxylamine to give the hydroxamic acid (26.1 mg, 58%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=333.

Example 5 [1(R)]-3-(4-(Cyclohexyloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(5a) Following a procedure analogous to (3b), the phenol from (3a) (350 mg, 1.26 mmol) was reacted with N,N′-dimethyl-O-cyclohexylisourea. Silica gel chromatography (ethyl acetate-hexane, 40:60) gave the cyclohexyl ether (70 mg, 15%) as a 1:1 mixture of two isomers. MS found: (M+H)⁺=360.

(5b) Following a procedure analogous to (1e), the cyclohexyl ether from (5a) (61.5 mg, 0.171 mmol) was reacted with hydroxylamine to give the hydroxamic acid (39.5 mg, 64%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=359.

Example 6 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[4-(1,1-dimethylethyl)phenylmethoxy]phenyl]-1-pyrrolidineacetamide

(6a) Following a procedure analogous to (3a), the more polar isomer from (1d) (2.35 g, 6.40 mmol) was hydrogenolyzed to give the phenol (1.77 g, 100%) as a colorless viscous oil. MS found: (M+H)⁺=278.

(6b) Cesium carbonate (225 mg, 1.8 eq) was added to a solution of the phenol from (6a) (106.3 mg, 0.383 mmol), and p-t-butylbenzyl bromide (174 mg, 2 eq) in methyl sulfoxide (2 mL). After 1.5 h at rt, saturated ammonium chloride (3 mL) and ethyl acetate-(100 mL) were added. The mixture was washed with water (2×5 mL), brine (5 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 35:75) gave the ether (149.5 mg, 92%) as a colorless oil. MS found: (M+H)⁺=424.

(6c) Following a procedure analogous to (1f), the ester from (6b) (142.0 mg, 0.335 mmol) was reacted with hydroxylamine. Upon neutralization and removal of methanol in vacuo, product precipitated out of solution. The precipitate was collected by filtration and washed with water several times to give the hydroxamic acid (113.3 mg, 80%) as a white powder. MS found: (M−H)⁻=423.

Example 7 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(trans-3-phenyl-2-propenyloxy)phenyl]-1-pyrrolidineacetamide

(7a) Following a procedure analogous to (6b), the phenol from (3a) (510 mg, 1.84 mmol) was reacted with cinnamyl bromide and potassium carbonate in N,N-dimethylformamide. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave less polar isomer (87 mg), more polar isomer (102 mg), and a 1:1 mixture of the two isomers (300 mg). The total yield is 489 mg (68%). MS found: (M+H)⁺=394.

(7b) Following a procedure analogous to (1e), the less polar isomer from (7a) (82 mg, 0.208 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (37 mg, 45%) as a solid. MS found: (M−H)⁻=393.

(7c) Following a procedure analogous to (1e), the more polar isomer from (7a) (97 mg, 0.247 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (52 mg, 54%) as a solid. MS found: (M−H)⁻=393.

Example 8 [1(R)]-3-[4-[(3-Methylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(8a) Following a procedure analogous to (6b), the phenol from (3a) (277.6 mg, 1.00 mmol) was reacted with α-bromo-m-xylene and cesium carbonate in N,N-dimethylformamide. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave the less polar isomer (53 mg), the more polar isomer (50.8 mg), and a 1:1 mixture the two isomers (40.0 mg). The total yield is 143.8 mg (38%). MS found: (M+H)⁺=382.

(8b) Following a procedure analogous to (1e), the less polar isomer from (8a) (53 mg, 0.139 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (31.7 mg, 60%) as a solid. MS found: (M−H)⁻=381.

(8c) Following a procedure analogous to (1e), the more polar isomer from (8a) (50.8 mg, 0.133 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (33.7 mg, 66%) as a solid. MS found: (M−H)⁻=381.

Example 9 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(9a) Following a procedure analogous to (6b), the phenol from (3a) (450 mg, 1.62 mmol) was reacted with α-bromomesitylene and cesium carbonate in N,N-dimethylformamide. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave the less polar isomer (130.8 mg), the more polar isomer (125.0 mg), and a 1:1 mixture of the two isomers (73.7 mg). The total yield is 329.5 mg (51%). MS found: (M+H)⁺=396.

(9b) Following a procedure analogous to (1e), the less polar isomer from (9a) (50 mg, 0.126 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (37.6 mg, 75%) as a solid. MS found: (M−H)⁻=395.

(9c) Following a procedure analogous to (1e), the more polar isomer from (9a) (46.0 mg, 0.116 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (25.0 mg, 54%) as a solid. MS found: (M−H)⁻=395.

Example 10 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(2-propenyloxy)phenyl]-1-pyrrolidineacetamide

(10a) Following a procedure analogous to (6b), the phenol from (3a) (480 mg, 1.73 mmol) was reacted with allyl bromide and potassium carbonate in N,N-dimethylformamide. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave the less polar isomer (111 mg), the more polar isomer (57 mg), and a 5:6 mixture of the two isomers (45.6 mg). The total yield is 213.6 mg (39%). MS found: (M+H)⁺=318.

(10b) Following a procedure analogous to (1e), the less polar isomer from (10a) (110 mg, 0.347 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (68 mg, 62%) as a solid. MS found: (M−H)⁻=317.

(10c) Following a procedure analogous to (1e), the more polar isomer from (10a) (57 mg, 0.18 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 5:95) gave the hydroxamic acid (51 mg, 89%) as a solid. MS found: (M−H)⁻=317.

Example 11 [1(R)]-3-[4-[(3-Cyanophenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(11a) Following a procedure analogous to (6b), the phenol from (6a) (99.7 mg, 0.360 mmol) was reacted with α-bromo-m-tolunitrile. Silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50) gave the ether (130.2 mg, 92%) as a colorless glass. MS found: (M+H)⁺=393.

(11b) Following a procedure analogous to (1e), the ester from (12a) (56.9 mg, 0.145 mmol) was reacted with hydroxylamine. Silica gel chromatography (methanol-dichloromethane, 8:92 then 15:85) gave the hydroxamic acid (24 mg, 42%) as a viscous oil. MS found: (M−H)⁻=392.

Example 12 [1(R)]-3-N-Hydroxy-α-3-dimethyl-3-[4-[(2-nitrophenyl)methoxy]phenyl]-2-pyrrolidineacetamide

(12a) Following a procedure analogous to (5b), the phenol from (5a) (93.0 mg, 0.335 mmol) was reacted with o-nitrobenzyl bromide. Silica gel chromatography (ethyl acetate-hexane, 40:60) gave product (130 mg, 94%) as a colorless glass. MS found: (M+H)⁺=413.

(12b) Following a procedure analogous to (1e), the ester from (12a) (110 mg, 0.267 mmol) was reacted with hydroxylamine to give the hydroxamic acid (106.6 mg, 97%) as a solid. MS found: (M−H)⁻=412.

Example 13 [1(R)]-N-Hydroxy-α-3-dimethyl-3-[4-[(3-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

(13a) Following a procedure analogous to (6b), the phenol from (6a) (95.2 mg, 0.343 mmol) was reacted with m-nitrobenzyl bromide. Silica gel chromatography (ethyl acetate-hexane, 40:60) gave the desired product (57.6 mg, 41%). MS found: (M+H)⁺=413.

(13b) Following a procedure analogous to (1e), the ester from (13a) (50 mg, 0.121 mmol) was reacted with hydroxylamine to give the hydroxamic acid (44.3 mg, 89%) as a solid. MS found: (M−H)⁻=412.

Example 14 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[(4-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

(14a) Following a procedure analogous to (6b), the phenol from (6a) (93.0 mg, 0.326 mmol) was reacted with p-nitrobenzyl bromide. Silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50) gave the desired product (126.7 mg, 94%) as a yellow glass. MS found: (M+H)⁺=413.

(14b) Following a procedure analogous to (1e), the ester from (14a) (120 mg, 0.291 mmol) was reacted with hydroxylamine to give the hydroxamic acid (108.0 mg, 90%) as a solid. MS found: (M−H)⁻=412.

Example 15 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[(1-naphthalenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

(15a) Following a procedure analogous to (6b), the phenol from (6a) (115.6 mg, 0.417 mmol) was reacted with 2-bromomethylnaphthalene and cesium carbonate. Silica gel chromatography (ethyl acetate-hexane, 35:65 then 45:55) gave the desired product (168.5 mg, 97%) as a white solid. MS found: (M+H)⁺=418.

(15b) Following a procedure analogous to (1e), the ester from (15a) (162.4 mg, 0.389 mmol) was reacted with hydroxylamine to give the hydroxamic acid (140.1 mg, 86%) as a white powder. MS found: (M−H)⁻=417.

Example 16 [1(R)]-N-Hydroxy-3-(4-hydroxyphenyl)-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(16a) A mixture of the hydroxamic acid from (1e) (163.3 mg, 0.44 mmol), 20% palladium hydroxide on carbon (40.8 mg) and methanol (6 mL) was stirred under balloon pressure hydrogen for 1 h. Filtration and concentration of the filtrate gave the hydroxamic acid (117 mg, 95%) as a white solid. MS found: (M−H)⁻=277.

(16b) Following a procedure analogous to (16a), the product from (1f) (45.2 mg, 123 mmol) was hydrogenolyzed to furnish the hydroxamic acid (34.1 mg, 100%) as a white solid. MS found: (M−H)⁻=277.

Example 17 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(2-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide

(17a) Cesium carbonate (306 mg, 2.8 eq) was added to the phenol from (6a) (92.8 mg, 0.335 mmol), and 2-picolyl chloride hydrochloride (110 mg, 2 eq) in methyl sulfoxide (2 mL). After 20 h at rt, same portions of cesium carbonate and 2-picolyl chloride were added. After 1 h at 50° C., saturated ammonium chloride (6 mL) and ethyl acetate (100 mL) were added. The mixture was washed with water (6 mL), brine (6 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 80:20 then 100:0) gave the desired product (112.7 mg, 91%) as a colorless oil. MS found: (M+H)⁺=369.

(17b) Following a procedure analogous to (1e), the ester from (17a) (106.6 mg, 0.289 mmol) was reacted with hydroxylamine to give the hydroxamic acid (86.4 mg, 81%) as a white solid. MS found: (M−H)⁻=368.

Example 18 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(3-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide

(18a) Cesium carbonate (311 mg, 2.8 eq) was added to the phenol from (6a) (94.7 mg, 0.341 mmol), and 3-picolyl chloride hydrochloride (112 mg, 2 eq) in methyl sulfoxide (2 mL). After 20 h at rt, same portions of cesium carbonate and 3-picolyl chloride hydrochloride were added. After 2 h at 75° C., saturated ammonium chloride (6 mL) and ethyl acetate (100 mL) were added. The mixture was washed with water (6 mL), brine (6 mL), dried (MgSO₄) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 80:20 then 100:0) gave the desired product (99.8 mg, 79%) as a colorless oil. Proton NMR indicated a 3:2 mixture of isomers due to partial epimerization at alanine chiral center. MS found: (M+H)+=369.

(18b) Following a procedure analogous to (1e), the ester from (18a) (94.5 mg, 0.256 mmol) was reacted with hydroxylamine to give the hydroxamic acid (90.1 mg, 95%) as a white solid. MS found: (M−H)⁻=368.

Example 19 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide

(19a) Cesium carbonate (331 mg, 2.8 eq) was added to the phenol from (7a) (100.7 mg, 0.363 mmol), and 4-picolyl chloride hydrochloride (119 mg, 2 eq) in methyl sulfoxide (2 mL). After 20 h at rt, same portions of cesium carbonate and 4-picolyl chloride hydrochloride were added. After 30 min at 75° C., saturated ammonium chloride (6 mL) and ethyl acetate (100 mL) were added. The mixture was washed with water (6 mL), brine (6 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate) gave the desired product (106.7 mg, 80%) as a colorless oil. Proton NMR indicated a 4.5:1 mixture of isomers due to partial epimerization at alanine chiral center. MS found: (M+H)⁺=369.

(19b) Following a procedure analogous to (1e), the ester from (19a) (99.8 mg, 0.271 mmol) was reacted with hydroxylamine to give the hydroxamic acid (81.2 mg, 81%) as a white solid. MS found: (M−H)⁻=368.

Example 20 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-(2-methylpropyl)phenyl]-2-oxo-1-pyrrolidineacetamide

(20a) Iodomethane (3.82 mL, 2.5 eq.) was added to a mixture of ibuprofen (4.97 g, 24.1 mmol), 1,8-diazabicyclo[4.3.0]non-5-ene (4.32 mL, 1.2 eq.) and benzene (100 mL) and the mixture was heated to reflux for 1 h. Following addition of hexane (100 mL), the mixture was filtered through a silica gel pad and the filter cake washed with ether-hexane (1:1, v/v) until free of product. The filtrate was concentrated in vacuo to give the methyl ester as a colorless liquid (5.12 g, 96%).

(20 b) Following a procedure analogous to (1a), ibuprofen methyl ester from (20a) (4.655 g) was reacted with sodium bis(trimethylsilyl)amide and allyl bromide to yield crude product (6.39 g) as a yellow liquid. This material was used in the subsequent reaction without purification.

(20c) Following a procedure analogous to (1c), the crude material from (20b) (6.19 g) was ozonolyzed to give crude aldehyde (6.53 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(20d) Following a procedure analogous to (1d), crude aldehyde from (20c) (2.05 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 30:70) gave less polar isomer (371.8 mg), more polar isomer (289.6 mg), and a 1:3 mixture of the two isomers (337.8 mg). The total yield is 999.2 mg (49% for three steps). MS found: (M+H)⁺=318.

(20e) Following a procedure analogous to (1e), the less polar isomer from (20d) (210 mg, 0.660 mmol) was reacted with hydroxylamine to give the hydroxamic acid (186.7 mg, 89%). MS found: (M−H)⁻=317.

(20f) Following a procedure analogous to (1e), the more polar isomer from (20d) (200 mg, 0.630 mmol) was reacted with hydroxylamine to give the hydroxamic acid (167.2 mg, 83%) as a white solid. MS found: (M−H)⁻=317.

Example 21 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-phenyl-1-pyrrolidineacetamide

(21a) Following a procedure analogous to (20a), 2-phenylpropionic acid (10.0 g, 66.5 mmol) was reacted with iodomethane and 1,8-diazabicyclo[4.3.0]non-5-ene to give the ester (9.57 g, 88%) as a colorless liquid.

(21b) Following a procedure analogous to (1a), the methyl ester from (21 a) (9.28 g, 56.5 mmol) was reacted with sodium bis(trimethylsilyl)amide and allyl bromide to yield crude product (11.96 g) as a yellow liquid. This material was used in the subsequent reaction without purification.

(21c) Following a procedure analogous to (1c), the crude material from (21b) (6.76 g) was ozonolyzed to give crude aldehyde (8.53 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(21d) Following a procedure analogous to (1d), the crude aldehyde from (21c) (1.93 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave less polar isomer (230 mg), more polar isomer (270 mg), and a 3:2 mixture of the two isomers (380 mg). The total yield is 880 mg (47% for three steps). MS found: (M+H)⁺=262.

(21e) Following a procedure analogous to (1e), the less polar isomer from (21d) (141.1 mg, 0.540 mmol) was reacted with hydroxylamine to give the hydroxamic acid (141.5 mg, 100%) as a solid. MS found: (M−H)⁻=261.

(21f) Following a procedure analogous to (1e), the more polar isomer from (21d) (165.2 mg, 0.632 mmol) was reacted with hydroxylamine to give the hydroxamic acid (149.6 mg, 90%) as a solid. MS found: (M−H)⁻=261.

Example 22 N-Hydroxy-2-oxo-3-phenyl-1-pyrrolidineacetamide

(22a) Following a procedure analogous to (1a), methyl phenylacetate (10.0 mL, 69.2 mmol) was reacted with sodium bis(trimethylsilyl)amide and allyl bromide to yield the desired (13.10 g, 100%) as a colorless liquid.

(22 b) Following a procedure analogous to (1c), the material from (22a) (7.06 g, 36.8 mmol) was ozonolyzed to give crude aldehyde (9.00 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(22c) Following a procedure analogous to (1d), the crude aldehyde from (22b) (2.00 g) was reacted with glycine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 50:50) gave the desired lactam (1.05 g, 55% for two steps).

(22d) Following a procedure analogous to (1e), the lactam from (22c) (433.8 mg, 1.86 mmol) was reacted with hydroxylamine to give the hydroxamic acid (261 mg, 60%) as a yellow powder. MS found: (M−H)⁻=233.

Example 23 (+/−)-N-Hydroxy-3-methyl-2-oxo-3-phenyl-1-pyrrolidineacetamide

(23a) Following a procedure analogous to (1d), the crude aldehyde from (21c) (2.19 g) was reacted with glycine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 35:65) gave the desired lactam (650 mg, 32% for three steps) as a colorless oil. MS found: (M+H)⁺=248.

(23b) Following a procedure analogous to (1e), the lactam from (23a) (433.8 mg, 1.86 mmol) was reacted with hydroxylamine to give the hydroxamic acid (261 mg, 90%) as a white powder. MS found: (M−H)⁻=247.

Example 24 [1(R)]-N-Hydroxy-α-methyl-2-oxo-3-phenyl-1-pyrrolidineacetamide

(24a) Following a procedure analogous to (1d), the crude aldehyde from (22b) (2.00 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60 then 50:50) gave less polar isomer (309.3 mg), more polar isomer (347.2 mg), and a 1:1 mixture of the two isomers (163.4 mg). The total yield is 819.9 mg (41% for two steps). MS found: (M+H)⁺=248.

(24b) Following a procedure analogous to (1e), the less polar isomer from (24a) (243.7 mg, 0.985 mmol) was reacted with hydroxylamine to give the hydroxamic acid (210 mg, 86%) as a white solid. MS found: (M−H)⁻=247.

(24c) Following a procedure analogous to (1e), the more polar isomer from (24a) (202.8 mg, 0.820 mmol) was reacted with hydroxylamine to give the hydroxamic acid (180 mg, 88%) as a white solid. MS found: (M−H)⁻=247.

Example 25 [1(R)]-N-Hydroxy-3-(4-methoxyphenyl)-α-methyl-2-oxo-1-pyrrolidineacetamide

(25a) Following a procedure analogous to (1c), the crude material from (2a) (8.22 g) was ozonolyzed to give crude aldehyde (8.22 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(25b) Following a procedure analogous to (1d), the crude aldehyde from (25a) (2.21 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 45:55 then 50:50) gave less polar isomer (215.8 mg), more polar isomer (181.1 mg), and a 1:1 mixture of the two isomers (623 mg). The total yield is 1.020 g (49% for three steps). MS found: (M+H)⁺=278.

(25c) Following a procedure analogous to (1e), the less polar isomer from (25b) (154.6 mg, 0.557 mmol) was reacted with hydroxylamine to give the hydroxamic acid (120.4 mg, 78%) as a viscous oil. MS found: (M−H)⁻=277.

(25d) Following a procedure analogous to (1e), the more polar isomer from (25b) (130.3 mg, 0.470 mmol) was reacted with hydroxylamine to give the hydroxamic acid (117.9 mg, 90%) as a solid. MS found: (M−H)⁻=277.

Example 26 [1(R)]-3-Cyclohexyl-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(26a) A mixture of the more polar isomer from (24a) (36.5 mg, 0.14 mmol), rhodium on alumina (17 mg), 4 N dioxane solution of hydrogen chloride (2 drops) and methanol (2 mL) was hydrogenated under 45 psi overnight. The mixture was filtered through a celite pad and the filter cake washed with ethyl acetate-hexane (40:60). The filtrate was concentrated to give the desired product (37.4 mg, 100%) as a colorless liquid. MS found: (M+H)⁺=268.

(26b) Following a procedure analogous to (1e), the ester from (26a) (52.4 mg, 0.196 mmol) was reacted with hydroxylamine to give the hydroxamic acid (25.2 mg, 48%) as a solid. MS found: (M−H)⁻=267.

Example 27 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-(2-phenylethyl)-1-pyrrolidineacetamide

(27a) A 2.5 M hexane solution of n-butyllithium (5.12 mL, 1.1 eq) was added dropwise to diisopropylamine (1.80 mL, 1.1 eq) in tetrahydrofuran (50 mL) at 0° C. The resultant mixture was stirred for 20 min at 0° C. and cooled to −78° C. A solution of ethyl 2-methyl-4-pentenoate (1.90 mL, 11.7 mmol) in tetrahydrofuran (25 mL) was added. The mixture was stirred at −78° C. for 30 min and warmed to 0° C. 2-Phenylethyl bromide (1.71 mL, 1.05 eq) in tetrahydrofuran (25 mL) was added dropwise. After additional 2 h at 0° C., saturated ammonium chloride (50 mL) was added and the mixture extracted with ethyl acetate (3×). The combined extracts were washed with brine, dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 0:100 then 5:95) gave the desired product (1.95 g, 68%) as a liquid. MS found: (M+H)⁺=247.

(27b) Following a procedure analogous to (1c), the olefin from (27a) (1.86 g, 7.55 mmol) was ozonolyzed. Silica gel chromatography (ethyl acetate-hexane, 10:90) gave the desired aldehyde (1.67 g, 89%) as a colorless oil. MS found: (M+H)⁺=249.

(27c) Following a procedure analogous to (1d), the aldehyde from (27b) (1.66 g, 6.68 mmol) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 35:65 then 40:60) gave the lactam (1.32 g, 68%) as a 1:1 mixture of two diastereomers. MS found: (M+H)⁺=290.

(27d) Following a procedure analogous to (1e), the ester from (27c) (52.4 mg, 0.196 mmol) was reacted with hydroxylamine to give the hydroxamic acid (226.6 mg, 96%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=289.

Example 28 [1(R)]-3-(2-Cyclohexylethyl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(28a) Following a procedure analogous to (26a), the ester from (27c) (180 mg, 0.622 mmol) was hydrogenated to give the desired product (184 mg, 100%) as a colorless oil. MS found: (M+H)⁺=296.

(28b) Following a procedure analogous to (1e), the ester from (28a) (160 mg, 0.542 mmol) was reacted with hydroxylamine to give the hydroxamic acid (158 mg, 98%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=295.

Example 29 [1(R)]-N-Hydroxy-α-methyl-2-oxo-3-phenyl-3-(phenylmethyl)-2-oxo-1-pyrrolidineacetamide

(29a) Following a procedure analogous to (20a), 2,3-diphenylacetic acid (10.26 g, 45.34 mmol) was reacted with iodomethane and 1,8-diazabicyclo[4.3.0]non-5-ene to give the ester (10.86 g, 100%) as a colorless liquid. MS found: (M+H)⁺=241.

(29b) Following a procedure analogous to (1a), the ester from (29a) (10.56 g, 43.9 mmol) was reacted with sodium bis(trimethylsilyl)amide and allyl bromide to yield crude product (13.13 g) as a pale yellow oil. This material was used in the subsequent reaction without purification.

(29 c) Following a procedure analogous to (1c), the crude material from (29b) (6.07 g) was ozonolyzed to give the crude aldehyde (7.10 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(29d) Following a procedure analogous to (1d), the crude aldehyde from (29 c) (2.08 g) was reacted with D-alanine methyl ester. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 30:70) gave a 1:1 mixture of lactams (1.07 g, 53% for three steps) as a colorless viscous oil. MS found: (M+H)⁺=338.

(29e) Following a procedure analogous to (1e), the ester from (29d) (980 mg, 2.90 mmol) was reacted with hydroxylamine to give the hydroxamic acid as a as a 1:1 mixture of two isomers. MS found: (M−H)⁻=337.

Example 30 [1(R)]-3,4,4′,5′-Tetrahydro-N-hydroxy-α-methyl-2-oxospiro[naphthalene-2(1H),3′-[3H]pryrrole]-1′(2′H)-acetamide

(30a) Following a procedure analogous to (20a), 1,2,3,4-tetrahydro-2-naphthoic acid (4.50 g, 25.5 mmol) was reacted with iodomethane and 1,8-diazabicyclo[4.3.0]non-5-ene to give the ester (4.62 g, 95%) as a pale yellow liquid. MS found: (M+H)⁺=191.

(30b) Following a procedure analogous to (1a), the ester from (30a) (4.52 g) was reacted with sodium bis(trimethylsilyl)amide and allyl bromide to yield crude product (5.20 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(30c) Following a procedure analogous to (1c), the crude olefin from (30b) (5.00 g) was ozonolyzed to give crude aldehyde (5.83 g) as a yellow oil. This material was used in the subsequent reaction without purification.

(30d) Following a procedure analogous to (1d), the crude aldehyde from (30c) (2.03 g) was reacted with D-alanine methyl ester hydrochloride. Silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) gave a 1:1 mixture of lactams (732.1 mg, 34% for three steps). MS found: (M+H)⁺=288.

(30e) Following a procedure analogous to (1e), the ester from (30d) (510.7 mg, 1.788 mmol) was reacted with hydroxylamine to give the hydroxamic acid (431 mg, 84%) as a 1:1 mixture of two isomers. MS found: (M−H)⁻=287.

Example 31 [1(R)]-3-[4-[(3,5-Dibromophenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-dibromobenzyl bromide, example 31 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=523.

Example 32 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-bis(trifluoromethyl)benzyl bromide, example 32 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=503.

Example 33 [1(R)]-3-[4-[(3,5-Dichlorophenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-dichlorobenzyl chloride, example 33 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=435.

Example 34 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[(2-methyl-1-naphthalenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 1-chloromethyl-2-methylnaphthalene, example 34 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M+Na)⁺=455.

Example 35 [1(R)]-3-[4-[(3,5-Dimethoxyphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-dimethoxybenzyl chloride, example 35 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=427.

Example 36 [1(R)]-3-[4-[4-Chloro-2-(trifluoromethyl)-6-quinolinyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 6-bromomethyl-4-chloro-2-trifluoromethylquinoline, example 36 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=520.

Example 37 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[[4-(1,2,3-thiadiazol-4-yl)phenyl]methoxy]phenyl]-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-(4-bromomethylphenyl)-1,2,3-thiadiazole, example 37 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=451.

Example 38 [1(R)]-3-[4-([1,1′-Biphenyl]-2-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 2-phenylbenzyl bromide, example 38 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=443.

Example 39 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-bromomethyl-2,6-dichloropyridine, example 39 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=436.

Example 40 [1(R)]-3-[4-(1H-Benzotriazol-1-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 1-chloromethylbenzotriazole, example 40 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=408.

Example 41 [1(R)]-3-[4-[(4,6-Dimethyl-2-pyrimidinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 2-chloromethyl-4,6-dimethylpyrimidine (Sakamoto et al, Heterocycles 1997, 6, 525), example 41 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=397.

Example 42 [1(R)]-3-[4-(1,3-Benzodioxol-5-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,4 methylenedioxybenzyl chloride, example 42 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=411.

Example 43 [1(R)]-3-[4-[(2-Chloro-6-ethoxy-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-bromomethyl-2-chloro-6-ethoxypyridine, example 43 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=446.

Example 44 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-chloromethylquinoline, example 44 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M+H)⁺=420.

Example 45 [1(R)]-3-[4-[(4,5-Dimethyl-2-thiazolyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 2-bromomethyl-4,5-dimethylthiazole, example 45 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M−H)⁻=402.

Example 46 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

Beginning with the phenol from (6a) and 4-chloromethyl-2,6-dimethylpyridine, example 46 was prepared in an analogous series of reactions to (6b) and (6c). MS found: (M+H)⁺=398.

Example 47 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[(3-methyl-5-nitrophenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

(47a) Following a procedure analogous to (6b), the phenol from (6a) (500 mg, 1.80 mmol) was reacted with 5-methyl-3-nitrobenzyl bromide to give the desired ether (690 mg, 90%). MS found: (M+Na)⁺=449.

(47b) Following a procedure analogous to step (1f), the ester from (47a) (67.4 mg, 0.158 mmol) was reacted with hydroxylamine to give the hydroxamic acid (48.7 mg, 72%). MS found: (M−H)⁻=426.

Example 48 [1(R)]-3-[4-[(3-Amino-5-methylphenyl)methoxy]phenyl]N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(48a) Zinc powder (2.5 g) was added to the ester from (47a) (670 mg, 1.57 mmol) in acetic acid (10 mL) and the mixture was stirred at 50° C. for 2 h. The solid was removed by filtration and washed with ethyl acetate. The filtrate was concentrated, treated with brine (15 mL) and 1 N NaOH (15 mL), and extracted with ethyl acetate (3×). The combined extracts were dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 45:55 then 55;45) gave the desired aniline (610 mg, 98%). MS found: (M+H)⁺=397.

(48b) Following a procedure analogous to step (1f), the ester from (48a) (80 mg, 0.202 mmol) was reacted with hydroxylamine to give the hydroxamic acid (63 mg, 79%). MS found: (M−H)⁻=396.

Example 49 [1(R)]-3-[4-[[3-(Acetylamino)-5-methylphenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(49a) Hunig's base (74 mg, 5 eq) and acetyl chloride (23 mg, 2 eq) were added sequentially to the aniline from (48a) (58 mg, 0.146 mmol) in dichloromethane (2.5 mL) at 0° C. After 30 min at this temperature, saturated NaHCO3 (5 mL) and ethyl acetate (100 mL) were added. The organic phase was separated, washed with brine (5 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 70:30) gave the acetamide (45 mg, 78%). MS found: (M+Na)⁺=461.

(49b) Following a procedure analogous to step (1f), the ester from (49a) (40 mg, 0.091 mmol) was reacted with hydroxylamine to give the hydroxamic acid (27 mg, 67%). MS found: (M−H)⁻=438.

Example 50 [1(R)]-1,1-Dimethylethyl[2-[[3-[[4-[1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-3-methyl-2-oxo-3-pyrrolidinyl]phenoxy]methyl]-5-methylphenyl]amino]-2-oxoethyl]carbamate

(50a) A mixture of the aniline from (48a) (100 mg, 0.252 mmol), N-(t-butoxycarbonyl)glycine (53 mg, 1.2 eq), BOP-Cl (70.6 mg, 1.1 eq), NMM (76.5 mg, 3 eq) and THF (10 mL) were heated to reflux for 30 min. Following addition of water (15 mL) and sat K2CO3, THF was removed in vacuo. The aqueous residue was extracted with ethyl acetate (3×40 mL). The combined organic extracts were dried (MgSO4) and concentrated. Silica gel chromatography (MeOH—CH2Cl2, 5:95) gave the desired amide (130 mg, 93%). MS found: (M+Na)⁺=576.

(50b) Following a procedure analogous to step (1f), the ester from (50a) (120 mg, 0.217 mmol) was reacted with hydroxylamine to give the hydroxamic acid (100 mg, 83%). MS found: (M−H)⁻=553.

Example 51 [1(R)]-3-[4-[[3-[(Aminoacetyl)amino]-5-methylphenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

The hydroxamic acid from (50b) (60 mg, 0.108 mmol) was stirred with trifluoroacetic acid (1 mL) and CH₂Cl₂ (1 mL) for 2 h at rt and concentrated to give the TFA salt (58 mg, 94%). MS found: (M+H)⁺=455.

Example 52 [1(R)]-1,1-Dimethylethyl[2-[[2-[[3-[[4-[1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-3-methyl-2-oxo-3-pyrrolidinyl]phenoxy]methyl]-5-methylphenyl]amino]-2-oxoethyl]amino]-2-oxoethyl]carbamate

Beginning with the aniline from (48a) and BOC-Gly-Gly-OH, example 52 was prepared in an analogous series of reactions to (50a) and (50b). MS found: (M+Na)⁺=634.

Example 53 [1(R)]-3-[4-[[3-[[[(Aminoacetyl)amino]acetyl]amino]-5-methylphenyl]methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

Beginning with the hydroxamic acid from example 52, example 53 was prepared following a procedure analogous to example 51. MS found: (M+H)⁺=512.

Example 54 [1(R)]-N-[3-[[4-[2-(Hydroxyamino)-1-methyl-2-oxoethyl]-3-methyl-2-oxo-3-pyrrolidinyl]phenoxylmethyl]-5-methylphenyl]-4-morpholinecarboxamide

Beginning with the aniline from (48a) and 4-morpholinecarbonyl chloride, example 54 was prepared in an analogous series of reactions to example 49. MS found: (M−H)⁻=509.

Example 55 3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α,α,3-trimethyl-2-oxo-1-pyrrolidineacetamide

(55a) Following a procedure analogous to step (1d), the aldehyde from (1c) (1.50 g, 4.81 mmol) was reacted with α-aminoisobutyric acid methyl ester hydrochloride to give the lactam (396 mg, 22%). MS found: (M+H)⁺=382.

(55b) Following a procedure analogous to step (3a), the lactam from (55a) (378 mg, 992 mmol) was hydrogenolized to give the phenol (270 mg, 93%). MS found: (M−H)⁻=290.

(55c) Following a procedure analogous to step (6b), the phenol from (55b) (128 mg, 0.440 mmol) was reacted with 4-bromomethyl-2,6-dichloropyridine to give the picolyl ether (153 mg, 77%). MS found: (M+Na)⁺=473.

(55d) The ester from (55c) was stirred in THF (3 mL) and 1 N NaOH (10 mL) at rt overnight. The mixture was acidified to pH 4 with 1 N HCl and THF removed in vacuo. The aqueous residue was extracted with ethyl acetate. The combined extracts were washed with brine, dried (MgSO4) and concentrated to give the carboxylic acid (137 mg, 94%). MS found: (M−H)⁻=435.

(55e) Hunig's base (148 mg, 4 eq), hydroxylamine hydrochloride (40 mg, 2 eq) and BOP (152 mg, 1.2 eq) were added to the acid from (55d) (125 mg, 0.286 mmol) in DMF (5 mL) at 0° C. the mixture was stirred at rt for 24 h and at 60° C. for 3 h. Sat ammonium chloride was added and the mixture extracted with ethyl acetate (2×). The extracts were washed with sat NaHCO3, water and brine, dried (MgSO4) and concentrated. Silica gel chromatography (methanol-chloroform, 8:92) provided the hydroxamic acid (50 mg, 39%). MS found: (M+Na)⁺=479.

Example 56 [1(R)]-3-[1,1′-Biphenyl]-4-yl-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(56a) Triflic anhydride (1.45 mL, 2.2 eq) was added dropwise to a solution of the phenol from (6a) (1.09 g, 3.93 mmol) and 2,6-lutidine (1.01 mL, 2.2 eq) in CH2Cl2 (50 mL) at 0° C. After 10 min at this temperature, hexane (200 mL) was added. The mixture was filtered through a silica gel pad and the filter cake washed with ethyl acetate-hexane (1:1) until free of product. The filtrate was concentrated to give the triflate (1.49 g, 93%). MS found: (M−H)⁻=408.

(56b) A mixture of the triflate from (56a) (150 mg, 0.366 mmol), benzeneboronic acid (89.3 mg, 2 eq), triphenylphosphine (96 mg, 1 eq), potassium carbonate (202 mg, 4 eq) and anhydrous toluene (10 mL) was pumped then filled with nitrogen for 10 cycles to remove oxygen. Palladium(II) acetate (16.4 mg, 0.2 eq) was then quickly added and the flask was again deoxygenated for 10 cycles. This mixture was heated to reflux for 18 h. Following addition of ethyl acetate, the mixture was washed with water (2×), brine, dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 25:75 then .50:50) give the biphenyl (118 mg, 96%). MS found: (M+Na)⁺=360.

(56c) Following a procedure analogous to step (1f), the ester from (56 b) (100 mg, 0.297 mmol) was reacted with hydroxylamine to give the hydroxamic acid (52 mg, 52%). MS found: (M+H)⁺=339.

Example 57 [1(R)]-N-Hydroxy-α,3-dimethyl-3-(2′-methyl[1,1′biphenyl]-4-yl)-2-oxo-1-pyrrolidineacetamide

Beginning with the triflate from (56a) and 2-methylbenzeneboronic acid, example 57 was prepared in an analogous series of reactions to (56b) and (56c). MS found: (M+H)⁺=353.

Example 58 [1(R)]-N-Hydroxy-α,3-dimethyl-3-(4′-methyl[1,1′-biphenyl]-4-yl)-2-oxo-1-pyrrolidineacetamide

Beginning with the triflate from (56a) and 4-methylbenzeneboronic acid, example 58 was prepared in an analogous series of reactions to (56b) and (56c). MS found: (M+H)⁺=353.

Example 59 [1(R)-3-(3′,4′-Dimethoxy[1,1-biphenyl]-4-yl)-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the triflate from (56a) and 3,4-dimethoxybenzeneboronic acid, example 59 was prepared in an analogous series of reactions to (56b) and (56c). MS found: (M−H)⁻=397.

Example 60 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-2′-(trifluoromethyl)[1,1′-biphenyl]-4-yl]-1-pyrrolidineacetamide

Beginning with the triflate from (56a) and 2-trifluoromethylbenzeneboronic acid, example 60 was prepared in an analogous series of reactions to (56b) and (56c). MS found: (M−H)⁻=405.

Example 61 [1(R)]-N-Hydroxy-(α,3-dimethyl-3-[4-(4-methylphenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

(61a) Copper(II) acetate monohydrate (108 mg, 1 eq), p-tolueneboronic acid (147 mg, 1 eq), and 4 A molecular sieve (400 mg) were added sequentially to the phenol from (6a) (150 mg, 0.541 mmol) and pyridine (0.219 mL, 5 eq) in dichloromethane. The resultant mixture was stirred at rt open to atmosphere for 20 h. The mixture was filtered through a silica gel pad and the filter cake washed with ethyl acetate until free of product. The filtrate was concentrated and purified by silica gel chromatography (ethyl acetate-hexane, 30:70 then 40:60) to give the phenyl ether (167.4 mg, 84%). MS found: (M+Na)⁺=390.

(61b) Following a procedure analogous to step (1f), the ester from (61a) (154 mg, 0.419 mmol) was reacted with hydroxylamine to give the hydroxamic acid (144 mg, 93%). MS found: (M−H)⁻=367.

Example 62 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-(4-phenoxyphenyl)-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and benzeneboronic acid, example 62 was prepared in an analogous series of reactions to (61a) and 61b). MS found: (M−H)⁻=353.

Example 63 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-(2-methylphenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 2-methylbenzeneboronic acid, example 63 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=367.

Example 64 [1(R)]-3-[4-(3,5-Dichlorophenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-dichlorobenzeneboronic acid, example 64 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=421.

Example 65 [1(R)]-3-[4-(3,4-Dimethoxyphenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,4-dimethoxybenzeneboronic acid, example 65 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=413.

Example 66 [1(R)]-3-[4-(1,3-Benzodioxol-5-yloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,4-methylenedioxybenzeneboronic acid, example 66 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=397.

Example 67 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[3-(1-methylethyl)phenoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and isopropylbenzeneboronic acid, example 67 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=395.

Example 68 [1(R)]-N-Hydroxy-3-[4-(3-methoxyphenoxy)phenyl]-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3-methoxybenzeneboronic acid, example 68 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=383.

Example 69 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(3-thienyloxy)phenyl]-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and thiophene-3-boronic acid, example 69 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=359.

Example 70 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-(3,4,5-trimethoxyphenoxy)phenyl]-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,4,5-trimethoxybenzeneboronic acid, example 70 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=443.

Example 71 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-bis(trifluoromethyl)benzeneboronic acid, example 71 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=491.

Example 72 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-(1-naphthalenyloxy)phenyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 1-naphthaleneboronic acid, example 72 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=405.

Example 73 [1(R)]-N-Hydroxy-3-[4-[3-[(hydroxyimino)methyl]phenoxy]phenyl]-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3-formylbenzeneboronic acid, example 73 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=398.

Example 74 [1(R)]-N-Hydroxy-3-[4-[4-[1-(hydroxyimino)ethyl]phenoxy]phenyl]-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-acetylbenzeneboronic acid, example 74 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M−H)⁻=410.

Example 75 [1(R)]-3-[4-([1,1-Biphenyl]-4-yloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 4-biphenylboronic acid, example 75 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=431.

Example 76 [1(R)]-3-[4-(3,5-Dibromorhenoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3,5-dibromobenzeneboronic acid, example 76 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=510.

Example 77 [1(R)]-3-[4-[3-(Acetylamino)phenoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (6a) and 3-acetamidobenzeneboronic acid, example 77 was prepared in an analogous series of reactions to (61a) and (61b). MS found: (M+H)⁺=412.

Example 78 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-(4-nitrophenoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

(78a) Cesium carbonate (254 mg, 1.8 eq) was added to the phenol from (6a) (120 mg, 0.433 mmol) and 1-fluoro-4-nitrobenzene (122 mg, 2 eq) in DMSO (2 mL). After 1 h at rt, sat ammonium chloride (3 mL) and ethyl acetate (100 mL) were added. The mixture was washed with water (2×5 mL), brine (5 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 50:50) gave the phenyl ether (139.7 mg, 81%). MS found: (M+H)⁺=399.

(78b) Following a procedure analogous to step (1f), the ester from (78a) (125 mg, 0.314 mmol) was reacted with hydroxylamine to give the hydroxamic acid (80.6 mg, 64%). MS found: (M−H)⁻=398.

Example 79 [1(R)]-N-Hydroxy-α,3-dimethyl-3-(4-methylphenyl)-2-oxo-1-pyrrolidineacetamide

Beginning with methyl(4-methylphenyl)acetate, example 79 was prepared in an analogous series of reactions to example 1. MS found (M−H)⁻=275.

Example 80 [1(R)]-3-[4-[[(2,6-Dimethyl-4-pyridinyl)oxy]methyl]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide Mono(triflubroacetate)

(80a-d) Beginning with methyl (4-methylphenyl)acetate, methyl(R)-α,3-dimethyl-2-oxo-3-(4-methylphenyl)-1-pyrrolidineacetate was prepared in an analogous series of reactions to (1a-d). The two isomers were separated by silica gel chromatography (ethyl acetate-hexane, 20:80 then 25:75). The more polar isomer was used for subsequent reactions. MS found: (M+H)⁺=276.

(80e) N-bromosuccinimide (1.45 g, 1.05 eq) and benzoyl peroxide (28.2 mg, 0.015 eq) were added to the more polar ester from (80d) (2.14 g, 7.77 mmol) in carbon tetrachloride (50 mL). The suspension was stirred under two 250 W sun lamp radiation for 2 h. The mixture was concentrated and purified by silica gel chromatography (ethyl acetate-hexane, 20:80 then 30:70) to give the bromide (1.784 g, 65%). MS found: (M+H)⁺=354.

(80f) Cesium carbonate (199 mg, 1.8 eq) was added to the bromide from (80e) (120 mg, 0.339 mmol) and 2,6-dimethyl-4-phenol (83 mg, 2 eq) in DMSO (4 mL). After 3 h at rt, sat ammonium chloride was added. The mixture was extracted with ethyl acetate (3×). The combined extracts were washed with brine, dried (MgSO4) and concentrated. Silica gel chromatography (methanol-chloroform, 7:93) gave the pyridinyl ether (35 mg, 26%). MS found: (M+H)⁺=397.

(80a) Following a procedure analogous to step (1f), the ester from (80f) (30 mg, 0.0758 mmol) was reacted with hydroxylamine. The hydroxamic acid was isolated as a TFA salt (15 mg, 39%). MS found: (M+H)⁺=398.

Example 81 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-quinolinyloxy)methyl]phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

Beginning with the bromide from (80e) and 4-hydroxyquinoline, example 81 was prepared in an analogous series of reactions to (80f) and (80g). MS found: (M+H)⁺=420.

Example 82 [1(R)]-N-Hydroxy-α,3-dimethyl-3-(4-nitrophenyl)-2-oxo-1-pyrrolidineacetamide

(82a) DBU (25.33 mL, 1.1 eq) was added dropwise to a mixture of 2-(4-nitrophenyl)propionic acid (30.00 g, 154 mmol) and iodomethane (10.55 mL, 1.1 eq) in toluene (250 mL). After 30 min at rt, ether (200 mL) was added. The mixture was filtered through a silica gel pad and the filter cake washed with ethyl acetate-hexane (1:1) until free of solvent. The combined filtrate was concentrated to give the ester (25.85 g, 80%). MS found: M⁺=209.

(82b) Sodium hydride (2.76 g, 1.2 eq, 60% in mineral oil) was added to the ester from (82a) (12.00 g, 57.4 mmol) and allyl bromide (9.93 mL, 2 eq) in DMF (200 mL) at 0° C. After 30 min at rt, sat NH4 Cl (200 mL) was added and the mixture was concentrated to dryness in vacuo. The solid was treated with water (200 mL) and extracted with ether (3×200 mL). The combined extracts were washed with water, brine, dried (MgSO4) and concentrated. The crude material was used in the next step without purification.

(82c) A 1 N solution of NaOH (100 mL) was added to half of the crude material from (82b) in methanol (200 mL). The mixture was stirred at rt overnight and at reflux for 1 h. Following removal of methanol in vacuo, the aqueous residue was washed with hexane (2×100 mL) to remove mineral oil. The combined hexane washings were back extracted with 1 N NaOH (30 mL). The combined aqueous layer was acidified with 1 N HCl (180 mL), saturated with solid NaCl, and extracted with ethyl acetate (3×250 mL). The combined organic extracts were washed with brine (30 mL), dried (MgSO4) and concentrated to give the carboxylic acid (6.38 g, 94% for 2 steps).

(82d) HATU (11.17 g, 1.1 eq) and NMM (10.27 mL, 3.5 eq) were added to the acid from (82c) (6.28 g, 26.7 mmol) and D-alanine methyl ester hydrochloride (4.10 g, 1.1 eq) in DMF (50 mL). After 2 h at rt, ethyl acetate (750 mL) was added. The mixture was washed with 1 N HCl (3×50 mL), water (50 mL), sat NaHCO3 (2×50 mL), water (50 mL), and brine (50 mL), dried (MgSO4) and concentrated. The crude material was used in the next step without purification. MS found: (M+H)⁺=321.

(82e) Ozone was bubbled through a solution of the crude olefin from (82d) in dichloromethane (200 mL) and methanol (100 mL) at −78° C. until starting material consumed the mixture was purged with oxygen and treated with triphenylphosphine (7.00 g, 1.0 eq). After 1 h at rt, the mixture was concentrated. The crude material was used in the next step without purification.

(82f) Triethylsilane (42.6 mL, 10 eq) and trifluroacetic acid (20.6 mL, 10 eq) were added successively to the crude aldehyde from (82e) in dichloromethane at 0° C. After 2 h at rt, the mixture was concentrated and purified by silica gel chromatography (ethyl acetate-toluene-hexane, 20:10:70 then 25:10:65 then 30:10:60 then 35:10:55) to give less polar lactam (2.211 mg), more polar lactam (2.184 g), and a 1:1 mixture of the two isomers (0.44 g). The total yield of the two isomers is 4.835 g (59% for three steps). MS found: (M+H)⁺=307.

(82 g) Following a procedure analogous to step (1f), the more polar ester from (82f) (100 mg, 0.326 mmol) was reacted with hydroxylamine to give the hydroxamic acid (93.8 mg, 94%). MS found: (M−H)⁻=306.

Example 83 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(phenylcarbonyl)amino]phenyl]-1-pyrrolidineacetamide

(83a) The more polar isomer from (82f) (1.97 g, 6.43 mmol) and 10% Pd on carbon (0.5 g) in methanol (50 mL) and chloroform (50 mL) was stirred under balloon pressure hydrogen for 2 h. Following removal of catalyst by filtration, the filtrate was concentrated to give the aniline (1.83 g, 100%). MS found: (M+H)⁺=277.

(83b) Following a procedure analogous to step (49a), the aniline from (83a) (100 mg, 0.362 mmol) was reacted with benzoyl chloride to give the benzamide (124 mg, 90%). MS found: (M+Na)⁺=403.

(83 c) Following a procedure analogous to step (1f), the benzamide from (83b) (110 mg, 0.289 mmol) was reacted with hydroxylamine to give the hydroxamic acid (100 mg, 91%). MS found: (M−H)⁻=380.

Example 84 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(phenylsulfonyl)amino]phenyl]-1-pyrrolidineacetamide

Beginning with the aniline from (83b) and benzenesulfonyl chloride, example 84 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+Na)⁺=440.

Example 85 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[[(phenylamino)carbonyl]amino]phenyl]-1-pyrrolidineacetamide

Beginning with the aniline from (83b) and phenyl isocyanate, example 85 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+Na)⁺=419.

Example 86 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[4-[(1-naphthalenylmethyl)amino]phenyl]-2-oxo-1-pyrrolidineacetamide

(86a) Hunig's base (0.13 mL, 2 eq), 1-naphthaldehyde (62.2 mg, 1.1 eq) and 4 A molecular sieves (300 mg) were added to the aniline from (83a) (100 mg, 0.362 mmol) in 1,2-dichloroethane (3 mL). After 30 min at rt, NaBH(OAc)3 (230 mg, 3 eq) was added and the mixture was stirred for 36 h. The precipitate was removed by filtration. The filtrate was concentrated and purified by silica gel chromatography (ethyl acetate-hexane, 50:50) to give the secondary amine (117 mg, 78%). MS found: (M+Na)⁺=439.

(86b) Following a procedure analogous to step (1f), the ester from (86a) (108 mg, 0.260 mmol) was reacted with hydroxylamine to give the hydroxamic acid (75.4 mg, 70%). MS found: (M+Na)⁺=440.

Example 87 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[4-[(4-quinolinylmethyl)amino]phenyl]-1-pyrrolidineacetamide

Beginning with the aniline from (83b) and quinoline-4-carboxaldehyde, example 87 was prepared in an analogous series of reactions to (86a) and (1f). MS found: (M+H)⁺=419.

Example 88 [1(R)]-3-[4-[[(3,5-Dimethoxyphenyl)methyl]amino]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

Beginning with the aniline from (83b) and 3,5-dimethoxybenzaldehyde, example 88 was prepared in an analogous series of reactions to (86a) and (1f). MS found: (M−H)⁻=426.

Example 89 3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and glycine methyl ester hydrochloride, example 89 was prepared in an analogous series of reactions to (1d), (3a), (6b) and (1f), but using 3,5-dimethylbenzyl bromide in step (6b). MS found: (M+Na)⁺=405.

Example 90 3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and glycine methyl ester hydrochloride, example 90 was prepared in an analogous series of reactions to (1d), (3a), (6b) and (1f), but using 4-bromomethyl-2,6-dichloropyridine in step (6b). MS found: (M+H)⁺=424.

Example 91 3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and glycine methyl ester hydrochloride, example 91 was prepared in an analogous series of reactions to (1d), (3a), (6b) and (1f), but using 4-bromomethyl-2,6-dimethylpyridine hydrochloride in step (6b). MS found: (M+H)⁺=424.

Example 92 [1(R)]-N-Hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(92a) Following a procedure analogous to step (1d), the aldehyde from (1c) (3.00 g, 9.61 mmol) was reacted with D-valine methyl ester hydrochloride to give the lactam as mixture of two isomers. Silica gel chromatography (ether-hexane, 50:50 then 85:15) provided the less polar isomer (1.25 g, 30%). MS found: (M+Na)⁺=418.

(92b) Following a procedure analogous to step (3a), the less polar lactam from (92a) (1.25 g, 3.18 mmol) was hydrogenolized to give the phenol (0.915 g, 94%). MS found: (M+H)⁺=300.

(92c) Following a procedure analogous to step (6b), the phenol from (92b) (106 mg, 0.348 mmol) was reacted with 4-chloromethylquinoline to give the phenyl ether (134 mg, 86%). MS found: (M+H)⁺=447.

(92d) The 1.76 M NH2OH/KOH solution in methanol was prepared fresh following the procedure described in (1e). The ester from (92c) (134 mg, 0.300 mmol) was treated with the hydroxylamine solution (3.4 mL, 20 eq). Additional hydroxylamine (2 mL, 0.5 mL and 2 mL) were added after 20 min, mixture was neutralized to pH 7 with 1 N HCl and concentrated. Purification by HPLC (acetonitrile-water-TFA, 15:85:0.1 to 50:50:0.1) provided the hydroxamic acid as a TFA salt (69 mg, 41%). MS found: (M−H)⁻=446.

Example 93 [1(R)]-N-Hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

Following a procedure analogous to step (1f), the less polar lactam from (92a) was reacted with hydroxylamine to give the hydroxamic acid. MS found: (M−H)⁻=395.

Example 94 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

Beginning with the phenol from (92b) and 4-chloromethyl-2,6-dimethylpyridine, example 94 was prepared in an analogous series of reactions to (6b) and (92d). MS found: (M+H)⁺=426.

Example 95 [1(R)]-3-[4-[(2,6-Dimethyl-4-pryridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(95a) Following a procedure analogous to step (1d), the aldehyde from (1c) (3.00 g, 9.61 mmol) was reacted with D-leucine methyl ester hydrochloride to give the lactam as mixture of two isomers. Silica gel chromatography (ether-toluene, 10:90) provided the less polar isomer (1.20 g, 31%). MS found: (M+Na)⁺=432.

(95b) Following a procedure analogous to step (3a), the less polar lactam from (95a) (1.20 g, 2.93 mmol) was hydrogenolized to give the phenol (0.94 g, 100%). MS found: (M+H)⁺=320.

(95c) Following a procedure analogous to step (6b), the phenol from (95b) (155 mg, 0.486 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine to give the phenyl ether (191 mg, 90%). MS found: (M+H)⁺=439.

(95d) Following a procedure analogous to step (1f), the ester from (95c) (140 mg, 0.320 mmol) was reacted with hydroxylamine to give the hydroxamic acid (115 mg, 82%). MS found: (M+H)⁺=440.

Example 96 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylyropyl)-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (95b) and 4-bromomethyl-2,6-dichloropyridine, example 96 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M−H)⁻=479.

Example 97 [1(R)]-3-[4-[[3,5bis(Trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (95b) and 3,5-bis(trifluoromethyl)benzyl bromide, example 97 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M−H)⁻=454.

Example 98 [1(R)]-3-[4-[(3,5-Dichlorophenyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (95b) and 3,5-dichlorobenzyl bromide, example 98 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=479.

Example 99 [1(R)]-N-Hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-3-[3-(phenylmethoxy)propryl]-1-pyrrolidineacetamide

(99a) Following a procedure analogous to step (1a), ethyl 2-methyl-4-pentenoate (3.00 g, 21.1 mmol) was reacted with 3-benzyloxy-1-bromopropane to give the crude ester. MS found: (M+NH4)⁺=308.

(99b) Following a procedure analogous to step (1c), the crude ester from (99a) was ozonolized to give the aldehyde (5.19 g, 84% for 2 steps). MS found: (M+NH4)⁺=310.

(99c) Following a procedure analogous to step (1d), the aldehyde from (99b) (5.06 g, 17.3 mmol) was reacted with D-leucine methyl ester hydrochloride to give the lactam as mixture of two isomers. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 25:75 then 30:70) provided the less polar isomer (1.94 g), the more polar isomer (1.66 g) and a 1:1.1 mixture of both isomers (1.86 g). The total yield of both isomers is 5.46 g (84%). MS found: (M+H)⁺=376.

(99d) Following a procedure analogous to step (1f), the less polar lactam from (99c) (100 mg, 0.266 mmol) was reacted with hydroxylamine to give the hydroxamic acid (86.6 mg, 80%). MS found: (M−H)⁻=375.

(99e) Following a procedure analogous to step (1f), the more polar lactam from (99 c) (100 mg, 0.266 mmol) was reacted with hydroxylamine to give the hydroxamic acid (81.8 mg, 82%). MS found: (M−H)⁻=375.

Example 101 [1(R)]-N-Hydroxy-3-methyl-3-[2-methyl-4-(phenylmethoxy)phenyl]-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(101a) Following a procedure analogous to step (1a), methyl (4-benzyloxy-2-methylphenyl)acetate (5.00 g, 18.5 mmol) was reacted with iodomethane to give the crude ester. MS found: (M+NH4)⁺=302.

(101b) Following a procedure analogous to step (1b), the crude material from (101a) was reacted with allylbromide to give the crude ester. MS found: (M+NH4)⁺=342.

(101c) Following a procedure analogous to step (1c), the crude ester from (101b) was ozonolized to give the aldehyde (5.42 g, 90% for 3 steps). MS found: (M+NH4)⁺=344.

(101d) Following a procedure analogous to step (1d), the aldehyde from (101c) (5.28 g, 16.2 mmol) was reacted with D-leucine methyl ester hydrochloride to give the lactam as mixture of two isomers. Silica gel chromatography (ethyl acetate-hexane, 20:80) provided the less polar isomer (1.363 g) and the more polar isomer (1.412 g). MS found: (M+Na)⁺=446.

(101e) Following a procedure analogous to step (1f), the less polar lactam from (101d) (100 mg, 0.262 mmol) was reacted with hydroxylamine to give the hydroxamic acid (65.2 mg, 65%). MS found: (M−H)⁻=423.

Example 102 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy)-2-methylphenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(102a) Following a procedure analogous to step (3a), the less polar lactam from (101d) (1.05 g, 2.48 mmol) was hydrogenolized to give the phenol (731 mg, 88%). MS found: (M−H)⁻=332.

(102b) Following a procedure analogous to step (6b), the phenol from (102a) (100 mg, 0.300 mmol) was reacted with 4-bromomethyl-2,6-dichloropyridine to give the picolyl ether (116 mg, 78%). MS found: (M+Na)⁺=515.

(102c) Following a procedure analogous to step (1f), the ester from (102b) (105 mg, 0.213 mmol) was reacted with hydroxylamine to give the hydroxamic acid (70.2 mg,. 67%). MS found: (M−H)⁻=492.

Example 103 [1(R)]-N-Hydroxy-3-methyl-3-[2-methyl-4-(2-naphthalenylmethoxy)phenyl]-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (102a) and 1-bromomethylnaphthlene, the desired product was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=475.

Example 104 [1(R)]-N-Hydroxy-3-methyl-α-(2-methylpropyl)-3-[2-methyl-4-(4-pyridinylmethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (102a) and 4-chloromethylpyridine, example 104 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=426.

Example 105 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]-2-methylphenyl]-N-hydroxy-3-methyl-α-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (102a) and 4-chloromethyl-2,6-dimethylpyridine, example 105 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=454.

Example 106 [1(R)]-N-Hydroxy-3-methyl-α-[2-(methylthio)ethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

(106a) Following a procedure analogous to step (1d), the aldehyde from (1c) (4.19 g, 13.4 mmol) was reacted with D-methionine methyl ester hydrochloride to give the lactam as a 1:1 mixture of two isomers (4.39 g, 77%). MS found: (M+H)⁺=428.

(106b) Following a procedure analogous to step (1f), the lactam from (106a) (144 mg, 0.337 mmol) was reacted with hydroxylamine to give the hydroxamic acid (90.7 mg, 63%). MS found: (M−H)⁻=427.

Example 107 [1(R)]-3-[4-(3,5-Dibromophenoxy)phenyl]-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetic Acid

(107a) Oxone (19.0 g, 3 eq) in water (100 mL) was added to the lactam from (106a) (8.80 g, 20.6 mmol) in methanol (100 mL) at 0° C. After 30 min at 0° C. and 4 h at rt, methanol was removed in vacuo. The aqueous residue was diluted with water (300 mL) and extracted with chloroform (3×400 mL). The combined organic extracts were washed with water (50 mL) and brine (50 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 60:40 then 70:30 then 100:0) provided the more polar sulfone (2.88 g, 30%). MS found: (M+Na)⁺=482.

(107b) Following a procedure analogous to step (3a), the sulfone from (107a) (2.88 g, 6.27 mmol) was hydrogenolized to give the phenol (2.15 g, 93%). MS found: (M+H)⁺=370.

(107c) Following a procedure analogous to step (61a), the phenol from (107b) (120 mg, 0.325 mmol) was reacted with 3,5-dibromobenzeneboronic acid to give the phenyl ether (150 mg, 77%). MS found: (M+H)⁺=604.

(107d) A 1 N solution of LiOH (0.28 mL, 1.3 eq) was added to the ester from (107c) (128 mg, 0.212 mmol) in THF (1.5 mL) at 0° C. After 30 min at this temperature, the mixture was acidified to pH 2-3. The mixture was concentrated to dryness, treated with ethyl acetate (100 mL), and filtered. The filtrate was concentrated to give the carboxylic acid (121 mg, 97%). MS found: (M−H)⁻=492.

Example 108 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (107b) and 3,5-bis(trifluoromethyl)benzene boronic acid, example 108 was prepared in an analogous series of reactions to (61a) and (1f). MS found: (M−H)⁻=581.

Example 109 [1(R)]-3-[4-(3,5-Dibromophenoxy)phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide

Following a procedure analogous to step (1f), the lactam from (107c) (156 mg, 0.259 mmol) was reacted with hydroxylamine to give the hydroxamic acid (110 mg, 70%). MS found: (M−H)⁻=603.

Example 110 1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (107b) and 4-bromomethyl-2,6-dichloropyridine, example 110 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M−H)⁻=528.

Example 111 [1(R)]-3-(4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the phenol from (107b) and 4-chloromethyl-2,6-dimethylpyridine, example 111 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=490.

Example 112 [1(R)]-N-Hydroxy-3-methyl-α-[2-(methylsulfonyl)ethyl]-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

Beginning with the phenol from (107b) and 4-chloromethylquinoline hydrochloride, example 112 was prepared in an analogous series of reactions to (6b) and (1f). MS found: (M+H)⁺=512.

Example 113 N-Hydroxy-1-[3-methyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidinyl]cyclopropanecarboxamide

(113a) Following a procedure analogous to step (1d), the aldehyde from (1c) (400 mg, 1.28 mmol) was reacted with 1-aminocyclopropane-1-carboxylic acid methyl ester hydrochloride to give the lactam (280 mg, 58%). MS found: (M+H)⁺=380.

(113b) Following a procedure analogous to step (1f), the ester from (113a) (100 mg, 0.264 mmol) was reacted with hydroxylamine to give the hydroxamic acid (76 mg, 76%). MS found: (M−H)⁻=379.

Example 114

[1(R)]-N-Hydroxy-α-[(4-hydroxyphenyl)methyl]-3-methyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and D-tyrosine methyl ester hydrochloride, example 114 was prepared in an analogous series of reactions to (1d) and (1f). MS found: (M−H)⁻=395.

Example 115 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(2-hydroxyethyl)-3-methyl-2-oxo-1-pyrrolidineacetamide

(115a) A mixture of D-homoserine (25.00 g, 210 mmol), 35-37% hydrochloric acid (200 mL) and water (200 mL) was heated to reflux for 3 h. Removal of solvent in vacuo provided the aminolactone hydrochloride (27.68 g, 96%). MS found: (M+NH4)⁺=119.

(115b) Following a procedure analogous to step (1d), the aldehyde from (1c) (3.00 g, 9.60 mmol) was reacted with the aminolactone hydrochloride from (114a) (1.45 g, 1.1 eq) to give the lactam as mixture of two isomers. Silica gel chromatography (ethyl acetate-hexane, 20:80) provided the less polar isomer (1.51 g) and the more polar isomer (1.45 g). MS found: (M+NH4)⁺=383.

(115c) Following a procedure analogous to step (3a), the more polar lactam from (115b) (1.40 g, 3.83 mmol) was hydrogenolized to give the phenol (1.06 g, 100%). MS found: (M+H)⁺=276.

(115d) Following a procedure analogous to step (6b), the phenol from (115c) (1.03 g, 3.74 mmol) was reacted with 4-bromomethyl-2,6-dichloropyridine to give the picolyl ether (1.36 g, 84%). MS found: (M+H)⁺=435.

(115e) Following a procedure analogous to step (1f), the ester from (115d) (71.0 mg, 0.163 mmol) was reacted with hydroxylamine to give the hydroxamic acid (59.1 mg, 77%) as a 85:15 mixture due to partial epimerization. MS found: (M−H)⁻=466.

Example 116 [1(R)]-1,1-Dimethylethyl[5-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate

(116a) Following a procedure analogous to step (1d), the aldehyde from (1c) (5.05 g, 16.2 mmol) was reacted with H-D-Lys(BOC)-OMe hydrochloride (5.28 g, 1.1 eq) to give the crude lactam as mixture of two isomers. The BOC protecting group came off during the cyclization.

(116b) The crude material from (116a) in methylene chloride (100 mL) and DMF (10 mL) was treated with Hunig's base (12.0 mL, 2 eq) and di-t-butyl dicarbonate (8.33 g, 1.2 eq) for 1 h at rt. Following addition of sat ammonium chloride (50 mL) and ethyl acetate (800 mL), the mixture was washed with water (2×50 mL), brine (50 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50) gave the BOC protected lactams (5.49 g, 65% for 2 steps) as a 1:1 mixture. MS found: (M+Na)⁺=547.

(116c) Following a procedure analogous to step (3a), the lactam from (116b) (5.40 g, 10.3 mmol) was hydrogenolized. Silica gel chromatography (isopropanol-chloroform, 3:97 then 5:95) gave more polar phenol (1.29 g), a 1:1 mixture of both isomers (1.46 g), as well as the less polar isomer. MS found: (M+Na)⁺=457.

(116d) Following a procedure analogous to step (6b), the more polar phenol from (116c) (300 mg, 0.690 mmol) was reacted with 4-bromomethyl-2,6-dichloropyridine to give the picolyl ether (360 mg, 88%). MS found: (M+Na)⁺=616.

(116e) Following a procedure analogous to step (1f), the ester from (116d) (152 mg, 0.256 mmol) was reacted with hydroxylamine to give the hydroxamic acid (71.0 mg, 47%). MS found: (M−H)⁻=593.

Example 117 [1(R)]-α-(4-Aminobutyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

The hydroxamic acid example 116 (39 mg, 0.065 mmol) was stirred with trifluoroacetic acid (0.5 mL) and CH₂Cl₂ (2 mL) for 1 h at rt and concentrated to give example 117 (40 mg, 100%). MS found: (M+H)⁺=495.

Example 118 [1(R)]-α-[4-(Acetylamino)butyl]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

(118a) The picolyl ether from (116d) (351 mg, 0.590 mmol) was stirred with trifluoroacetic acid (2 mL) and CH₂Cl₂ (8 mL) for 2 h at rt and concentrated to give the free amine trifluoroacetate in quantitative yield. MS found: (M+H)⁺=494.

(118b) Beginning with the amine from (118a) and acetyl chloride, example 118 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M−H)⁻=535.

Example 119 [1(R)]-N-[5-[3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]-3-pyridineacetamide

Beginning with the amine from (118a) and nicotinoyl chloride, example 119 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+H)⁺=600.

Example 120 [1(R)]-N-[5-[3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]-4-morpholinecarboxamide

Beginning with the amine from (118a) and 4-morpholinecarbonyl chloride, example 120 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+Na)⁺=630.

Example 121 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-α-[4-[(methylsulfonyl)amino]butyl]-2-oxo-1-pyrrolidineacetamide

Beginning with the amine from (118a) and methanesulfonyl chloride, example 121 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+Na)⁺=595.

Example 122 [1(R)]-α-[4-(Acetylamino)butyl]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

(122a) Following a procedure analogous to step (6b), the more polar phenol from (116c) (1.00 g, 2.30 mmol) was reacted with 4-bromomethyl-2,6-dimethylpyridine to give the picolyl ether (1.00 g, 79%). MS found: (M+H)⁺=554.

(122b) Following a procedure analogous to step (118a), the picolyl ether from (122a) (1.00 g, 1.81 mmol) was deprotected with trifluoroacetic acid to give the amine trifluoroacetate (1.28, 100%). MS found: (M+H)⁺=454.

(122c) Beginning with the amine from (122b) and acetyl chloride, example 122 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+H)⁺=497.

Example 123 [1(R)]-1,1-Dimethylethyl[5-[3-[4-[(2,6-dimethyl-4-pyridiny-1-methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate

Beginning with the picolyl ether from (122a), example 123 was prepared in an analogous series of reactions to (55d) and (55e). MS found: (M+H)⁺=555.

Example 124 [1(R)]-α-(4-Aminobutyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Starting with the hydroxamic acid from example 123, example 124 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=455.

Example 125 [1(R)]-α-[4-[(Aminoacetyl)amino]butyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the amine from (122b) and N-(t-butoxycarbonyl)glycine, example 125 was prepared in an analogous series of reactions to (50a), (1e) and example 51. MS found: (M+H)⁺=512.

Example 126 [1(R)]-α-[4-(Acetylamino)butyl]-3-[4-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

Beginning with the more polar phenol from (116c) and 3,5-bis(trifluoromethyl)benzyl bromide, example 126 was prepared in an analogous series of reactions to (6b), (118a), (49a) and (1f). MS found: (M+Na)⁺=626.

Example 127 [1(R)]-1,1-Dimethylethyl[5-[3-[4-(3,5-dibromophenoxy)phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl-]carbamate

Beginning with the more polar phenol from (116c) and 3,5-dibromobenzeneboronic acid, example 127 was prepared in an analogous series of reactions to (61a) and (1f). MS found: (M−H)⁻=668.

Example 128 [1(R)]-α-(4-Aminobutyl)-3-[4-(3,5-dibromoyhenoxy)phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

Starting with the hydroxamic acid from example 127, example 128 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=570.

Example 129 [1(R)]-1,1-Dimethylethyl[3-[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]carbamate

(129a) Iodobenzene diacetate (38.6 g, 1.2 eq) was added to a mixture of Z-D-Gln-OH (28.1 g, 100 mmol), ethyl acetate (134 mL), acetonitrile (134 mL) and water (67 mL) at 5-10° C. After 30 min at 10° C. and 4 h at 16° C., the organic solvent was removed in vacuo. The aqueous residue was washed with ethyl acetate (2×20 mL) and concentrated to small volume. The product was precipitated out by addition of ethyl acetate (100 mL). Filtration and washing with ethyl acetate (50 mL) provided the diamino acid (16.3 g, 64.5%). MS found: (M+H)⁺=253.

(129b) Following a procedure analogous to (82a), the diamino acid from (129a) (5.40 g, 21.4 mmol) was cyclized with BOP reagent to give the lactam (2.33 g, 47%). MS found: (M+Na)⁺=257.

(129c) Following a procedure analogous to (3a), the lactam from (129b) (9.10 g, 38.8 mmol) was hydrogenolized to give the free aminolactam hydrochloride (5.33 g, 100%). MS found: (M+NH4)⁺=118.

(129d) Following a procedure analogous to (1d), the aldehyde from (1c) (2.39 g, 7.65 mmol) and the lactam from (129c) (1.3 eq) were converted to the lactam (2.29 g, 82%) as a 1.1 mixture of two isomers. MS found: (M+Na)⁺=387.

(129e) Following a procedure analogous to (3a), the lactam from (129d) (2.23 g, 6.12 mmol) was hydrogenolized to give the phenol (1.60 g, 95%). MS found: (M+H)⁺=275.

(129f) Following a procedure analogous to (6b), the phenol from (129e) (1.51 g, 5.50 mmol) was coupled with 4-bromomethyl-2,6-dichloropyridine to give the picolyl ether (1.03 g, 43%). MS found: (M+Na)⁺=456.

(129 g) Triethylamine (0.32 mL, 1 eq), (BOC)2O (1.00 g, 2 eq) and DMAP (0.281 g, 1 eq) were added to the lactam from (129f) (1.00 g, 2.30 mmol) in dichloromethane (10 mL) and the mixture was stirred at rt overnight. The solvent was removed and the mixture purified by silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50 then 60:40) to provide the less polar isomer (380 mg) and the more polar isomer (310 mg). MS found: (M+Na)⁺=556.

(129h) Following a procedure analogous to (1f), the more polar lactam from (129 g) (102 mg, 0.191 mmol) was converted to the hydroxamic acid (50.0 mg, 50%). MS found: (M−H)⁻=565.

Example 130 [1(R)]-α-(2-Aminoethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

Starting with the hydroxamic acid from example 129, example 130 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=467.

Example 131 [1(R)]-α-[2-(Acetylamino)ethyl]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide

(131a) Chlorotrimethylsilane (0.20 mL, 10 eq) was added to the more polar lactam from (129 g) (90.0 mg, 0.168 mmol) in methanol at rt. After 12 h at reflux, additional chlorotrimethylsilane (10 eq) was added and the mixture kept at reflux to another 24 h. Concentration and purification by silica gel chromatography (methanol-dichloromethane, 5:95 then 10:90) provided the aminoester (70 mg, 89%). MS found: (M+H)⁺=466.

(131b) Following a procedure analogous to (49a), the aminoester from (131a) (64 mg, 0.137 mmol) was converted to the acetamide (70 mg, 100%). MS found: (M+Na)⁺=630.

(131c) Following a procedure analogous to (1f), the acetamide from (131b) (65 mg, 0.128 mmol) was converted to the hydroxamic acid (15 mg, 23%). MS found: (M−H)⁻=508.

Example 132 [1(R)]-1,1-Dimethylethyl[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]carbamate Mono(trifluoroacetate)

(132a) Following a procedure analogous to (129 g), the lactam mixture from (129d) (6.36 g, 17.4 mmol) was converted to the BOC protected lactam. Silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50 then 60:40) provided the less polar isomer (3.70 g) and the more polar isomer (3.19 g). The total yield is 85%. MS found: (M+Na)⁺=487.

(132b) Following a procedure analogous to example 117, the more polar isomer from (132a) (3.13 g, 8.59 mmol) was deprotected to give the lactam (1.70 g, 69%). MS found: (M+H)⁺=365.

(132c) Following a procedure analogous to (3a), the lactam from (132b) (1.68 g, 4.61 mmol) was hydrogenolized to give the phenol (1.23 g, 97%). MS found: (M+H)⁺=275.

(132d) Following a procedure analogous to (6b), the phenol from (132c) (1.20 g, 4.37 mmol) was coupled with 4-bromomethyl-2,6-dimethylpyridine to give the picolyl ether (1.63 g, 95%). MS found: (M+H)⁺=394.

(132e) Following a procedure analogous to (131a), the lactam from (132d) (1.58 g, 4.02 mmol) was converted to the methyl ester bis(hydrochloride) (2.00 g, 100%). MS found: (M+H)⁺=426.

(132f) Following a procedure analogous to (49a), the aminoester from (132e) (100 mg, 0.183 mmol) was reacted with (BOC)20 to give the t-butyl carbamate (70 mg, 60%). MS found: (M+H)⁺=526.

(132g) Following a procedure analogous to (1f), the ester from (132f) (65 mg, 0.124 mmol) was converted to the hydroxamic acid (23.5 mg, 30%). MS found: (M+H)⁺=527.

Example 133 [1(R)]-α-(2-Aminoethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Starting with the hydroxamic acid from example 132, example 133 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=427.

Example 134 N-[3-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]-3-pyridinecarboxamide

Beginning with the amine from (132e) and nicotinoyl chloride, example 134 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+H)⁺=523.

Example 135 [1(R)]-N-[3-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pryrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]-4-morpholinecarboxamide Mono(trifluoroacetate)

Beginning with the amine from (132e) and 4-morpholinecarbonyl chloride, example 120 was prepared in an analogous series of reactions to (49a) and (1f). MS found: (M+H)⁺=540.

Example 136 [1(R)]-1,1-Dimethylethyl[2-[[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]amino]-2-oxoethyl]carbamate Mono(trifluoroacetate)

Beginning with the amine from (132e) and N-(t-butoxycarbonyl)glycine, example 136 was prepared in an analogous series of reactions to (50a) and (1e). MS found: (M+H)⁺=584.

Example 137 [1(R)]-α-[2-[(Aminoacetyl)amino]ethyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Starting with the hydroxamic acid from example 136, example 137 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=484.

Example 138 [1(R)]-1,1-Dimethylethyl[2-[[2-[[3-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-4-(hydroxyamino)-4-oxobutyl]amino]-2-oxoethyl]amino]-2-oxoethyl]carbamate Mono(trifluoroacetate)

Beginning with the amine from (132e) and BOC-Gly-Gly-OH, example 138 was prepared in an analogous series of reactions to (50a) and (1e). MS found: (M+H)⁺=641.

Example 139 [1(R)]-α-[2-[[[(Aminoacetyl)amino]acetyl]amino]ethyl]3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Starting with the hydroxamic acid from example 138, example 139 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=541.

Example 140 [1(R)]-N-Hydroxy-3-methyl-2-oxo-α-[(phenylmethoxy)methyl]-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and (D)-Ser(OBn)-OMe, example 140 was prepared in an analogous series of reactions to (1d) and (1e). MS found: (M−H)⁻=473.

Example 141 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(hydroxymethyl)-3-methyl-2-oxo-1-pyrrolidineacetamide

Beginning with the aldehyde from (1c) and (D)-Ser(OBn)-OMe, example 141 was prepared in an analogous series of reactions to (1d), (3a), (6b) and (1e). MS found: (M−H)⁻=437.

Example 142 [1(R)]1,1-Dimethylethyl4-[2-(hydroxyamino)-1-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-2-oxoethyl]-1-piperidinecarboxylate Mono(trifluoroacetate)

(142a) To 2-(R)-azido-2-(N-t-BOC-4-piperidinyl)acetic acid (50.0 g, 213 mmol, Ciba-Geigy, EP606046 1994) in methanol (125 mL) and benzene (500 mL) was added a 2 M hexane solution of trimethylsilyl diazomethane (110 mL, 1.03 eq). After 10 min at rt, the mixture was concentrated. Silica gel chromatography (ethyl acetate-hexane, 10:90 then 20:80) gave the methyl ester (36.8 g, 58%). MS found: (M+H)⁺=299.

(142b) A mixture of the azido ester from (142a) (36.8 g, 123 mmol), 10% Pd on carbon (8.0 g) in water (600 mL), THF (600 mL) and acetic acid (200 mL) was stirred under balloon pressure hydrogen at rt overnight. The catalyst was removed by filtration and the filtrate was concentrated to give the amino ester (29.5 g, 88%). MS found: (M+H)⁺=273.

(142c) Following a procedure analogous to step (1 d), the aldehyde from (1c) (2.00 g, 6.40 mmol) was reacted with the amino ester from (142b) (2.09 g, 1 eq) to give the crude lactam as mixture of two isomers. The BOC protecting group came off during the cyclization. MS found: (M+H)⁺=437.

(142 d) Following a procedure analogous to step (116b), the crude material from (142c) was reacted with (BOC)2O to provide the carbamate (2.13 g, 62%) as a 1:1 mixture. MS found: (M+Na)⁺=559.

(142e) Following a procedure analogous to step (3a), the lactam from (142d) (2.13 g, 3.97 mmol) was hydrogenolized to give the phenol (1.72 g, 97%). MS found: (M−H)⁻=445.

(142f) Following a procedure analogous to step (6b), the phenol from (142e) (700 mg, 1.57 mmol) was reacted with 4-chloromethylquinoline hydrochloride to give the ether (744 mg, 81%). MS found: (M+H)⁺=588.

(142g) Following a procedure analogous to step (92d), the ester from (142f) (160 mg, 0.272 mmol) was reacted with hydroxylamine. The product was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the fast moving isomer (61.5 mg) and the slow moving isomer (53.0 mg). MS found: (M+H)⁺=589.

Example 143 [1(R)]-N-Hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl-4-piperidineacetamide Mono(trifluoroacetate)

Starting with the slow moving isomer from example 142, example 143 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=489.

Example 144 [1(R)]-N-Hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-(methylsulfonyl)-4-piperidineacetamide Mono(trifluoroacetate)

(144a) Following a procedure analogous to example 117, the lactam from (142f) (553 mg, 0.941 mmol) was reacted with TFA to give the piperidine mono(trifluoroacetate) (1.04, 100%). MS found: (M+H)⁺=488.

(144b) Following a procedure analogous to (49a), the piperidine from (144a) (200 mg, 0.278 mmol) was reacted with MsCl to give the sulfonamide (112 mg, 71%). MS found: (M+H)⁺=566.

(144c) Following a procedure analogous to step (92d), the ester from (144b) (112 mg, 0.198 mmol) was reacted with hydroxylamine. The product was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the fast moving isomer (14.0 mg) and the slow moving isomer (13.5 mg). MS found: (M+H)⁺=567.

Example 145 [1(R)]-1,1-(2-Furanylcarbonyl)-N-hydroxy-α-[3-methyl-2-oxo-3-[4-(4-quinolinylmethoxy)phenylmethoxy)phenyl]-1-pyrrolidinyl]-4-piperidineacetamide Mono(trifluoroacetate)

Beginning with the piperidine from (144a) and 2-furic acid, example 145 was prepared in an analogous series of reactions to (50a) and (92d). MS found: (M+H)⁺=583.

Example 146 [1(R)]-1,1-Dimethylethyl 4-[1-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate Mono(trifluoroacetate)

(146a) Following a procedure analogous to step (6b), the phenol from (142e) (1.07 g, 2.40 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine hydrochloride to give the picolyl ether (1.15 g, 85%). MS found: (M+Na)⁺=588.

(146b) Following a procedure analogous to step (92d), the ester from (146a) (124 mg, 0.219 mmol) was reacted with hydroxylamine. The product was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the fast moving isomer (40.0 mg) and the slow moving isomer (30.0 mg). MS found: (M+H)⁺=567.

Example 147 [1(R)]-α-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Starting with the slow moving isomer from example 146, example 147 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=467.

Example 148 [1(R)]-Methyl4-[1-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate Mono(trifluoroacetate)

(148a) Following a procedure analogous to example 117, the 1:1 mixture of lactams from (146a) (1.01 g, 1.79 mmol) was reacted with TFA to give the piperidine mono(trifluoroacetate) (1.22 g, 100%). MS found: (M+H)⁺=466.

(148 b) Following a procedure analogous to (49a), the piperidine from (148a) (75.4 mg, 0.109 mmol) was reacted with methyl chloroformate to give the crude carbamate. MS found: (M+H)⁺=524.

(148c) Following a procedure analogous to step (92d), the crude ester from (148b) was reacted with hydroxylamine. The diastereomeric mixture was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the slow moving isomer (14.1 mg). MS found: (M+H)⁺=525.

Example 149 [1(R)]-α-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide Mono(trifluoroacetate)

Beginning with the piperidine from (148a) and mathanesulfonyl chloride, example 149 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=545.

Example 150 [1(R)]-1-Acetyl-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide Mono(trifluoroacetate)

Beginning with the piperidine from (148a) and acetyl chloride, example 150 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=509.

Example 151 [1(R)]-1-(2,2-Dimethyl-1-oxopropyl)-α-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide Mono(trifluoroacetate)

Beginning with the piperidine from (148a) and trimethylacetyl chloride, example 151 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=551.

Example 152 [1(R)]-α-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-methyl-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (148a) and formaldehyde, example 152 was prepared in an analogous series of reactions to (86a) and (92d). MS found: (M+H)⁺=481.

Example 153 [1(R)-α-[3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-3-methyl-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(1-methylethyl)-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (148a), sodium cyanoborohydride and acetone, example 153 was prepared in an analogous series of reactions to (86a) and (92d). MS found: (M+H)⁺=510.

Example 300 [1(R)]-3-Amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(2-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate

(300a) The p-hydroxy phenyl glycine (74.0 g, 442 mmol) was suspended in methanol (500 mL), cooled in an ice bath and HCl (gas) was bubbled through the reaction mixture for 20 minutes, to give a clear solution. The reaction was stirred at rt for 48 h, concentrated in vacuo to give an oil which was triturated with ethyl ether to give the p-hydroxy phenyl glycine methyl ester (95.8 g, 99%) as a white powder. MS found: (M+H)⁺=182.

(300b) The Di-t-butyl dicarbonate (105.0 g, 484 mmol) dissolved in DMF (100 mL) was added slowly to an ice cooled solution of p-hydroxy phenyl glycine methyl ester (95.8 g, 440 mmol), triethyl amine (101 mL) and DMF (800 mL). The reaction was allowed to warm to rt, stirred for 5 h, partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and was concentrated in vacuo to give the N-Boc product (123.0 g, 100%) an amber oil. MS (M−H)⁻=280.

(300c) The N-Boc p-hydroxy phenyl glycine methyl ester from step (300a) (123.0 g, 440 mmol) was combined with benzyl bromide (90.3 g, 528 mmol), potassium carbonate (182 g, 1.3 mol) and acetone (800 mL) under a nitrogen atmosphere. The reaction was heated to reflux for 5 h, allowed to cool to rt, diluted with ethyl acetate (800 mL) filtered to remove the solids and concentrated in vacuo to give a semisolid residue. The product was crystallized from ethyl ether to give the N-Boc p-benzyloxy phenyl glycine methyl ester (106.7 g, 65%) as a white powder. MS (M+H)⁺=372, (M+NH4)⁺=389.

(300d) The LDA (148.1 mL, 296.2 mmol) was added slowly to a solution of the N-Boc p-benzyloxy phenyl glycine methyl ester from step (300c) (55.0 g, 148.1 mmol) in THF (500 mL) cooled to −78° C. under a nitrogen atmosphere. The reaction was allowed to stir for 1 h and the allyl bromide (17.9 g, 148.1 mmol) was added. The reaction was allowed to warm to 0° C. and stir for 1.5 h. The reaction was partitioned between ethyl acetate an HCl organic layer was washed with brine dried over magnesium sulfate and concentrated in vacuo to give an oil. The product was purified by flash chromatography on silica gel (hexane:ethyl acetate, 85:15, v:v) to give olefin (50,1 g, 82%). MS (M+Na)⁺=434.

(300e) Following a procedure analogous to that used in step (1c), the olefin from (300d) (5.0 g, 11.37 mmol) was oxidized to the aldehyde. The product was purified by flash chromatography on silica gel (hexane:ethyl acetate, 70:30, v:v) to give the desired aldehyde (4.6 g, 98%). MS (M+Na)⁺=436.

(300f) The aldehyde from (300e) (4.0 g, 9.67 mmol) was combined with leucine methyl ester hydrochloride (2.1 g, 11.6 mmol) and DIEA (1.49 g, 11.6 mmol) in 1,2 1,2-dichloroethane (50 mL) at rt and stirred for 1 h. To this solution the sodium triacetoxyborohydride (3.1 g, 14.5 mmol) was added. The reaction was stirred for 2 h, diluted with methylene chloride washed with brine, dried over magnesium sulfate and concentrated in vacuo, to give the amine (5.2 g, 100%) as a clear oil. MS (M+H)⁺=543.

(300g) The amine from (300f) (5.2 g, 9.67 mmol) was dissolved in toluene (100 mL) under a nitrogen atmosphere and was heated to 90° C. for 4 h. The reaction was allowed to cool to rt, concentrated in vacuo to give a crude oil which was purified by flash chromatography on silica gel (hexane:ethyl acetate, 85:15, v:v) to give the desired lactam as two separated diastereomers (4.8 g, 97%) as a glass. MS (M+H)⁺=511.

(300h) The lactam from (300g) (2.6 g, 3.9 mmol) was dissolved in methanol (50 mL), degassed with nitrogen, 10% Pd/C was added and the reaction was charged to 50 PSI hydrogen. The reaction was shaken for 3 h, filtered through celite to remove the catalyst, concentrated in vacuo to give the phenol product (1.6 g, 100%) as a white foam. MS (M+H)⁺=421, MS (M+Na)⁺=443.

(300i) The phenol product from (300h) (0.15 g, 0.35 mmol) was combined with 2(chloromethyl)quinoline (0.15 g, 0.71 mmol), cesium carbonate (3 eq) and sodium iodide in acetone (15 mL), then heated to reflux. The reaction was heated for 3 h, cooled, diluted with ethyl acetate, filtered to remove the solids and concentrated in vacuo to give a crude oil. The product was purified by flash chromatography on silica gel (methylene chloride:ethyl acetate, 80:20, v:v) to give the desired lactam product (0.15 g, 76%) as a white foam. MS (M+H)⁺=562 (M−NH2)⁺=445.

(300j) The N-Boc lactam from (300i) (0.14 g., 0.25 mmol) was dissolved in methylene chloride (2 mL) and TFA (2 mL) under a nitrogen atmosphere. The reaction was stirred for 2 h, concentrated in vacuo to give the expected amino lactam (0.14 g, 100%) as an oil. MS (M+H)⁺=462, (M−NH2)⁺=445.

(300k) Following a procedure analogous to that used in step (1f), the methyl ester amino lactam product from (300j) (0.14 g, 0.30 mmol) was converted to the crude hydroxamic acid which was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.085 g, 49%) as a white amorphous solid. MS (M+H)⁺=463, (M−NH2)⁺=446.

Example 301 [1(R)]-3-Amino-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(301a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dimethyl benzyl bromide in step (300i), the crude hydroxamic acid was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.021 g, 42%) as a white amorphous solid. MS (M+H)⁺=398, (M−NH2)⁺=381.

Example 302 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-3-[[(ethylamino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide

(302a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dimethyl benzyl bromide in step (300i), the amino lactam methyl ester from step (j) was prepared and purified by crystallization from ethyl ether (0.28 g, 40%). MS (M+Na)⁺=419, (M−NH2)⁺=380.

(302b) The ethyl isocyanate (0.0035 g, 0.05 mmol) was added to a solution of amino lactam methyl ester (302a) (0.025 g, 0.05 mmol), methylene chloride (1 mL) and N-methyl morpholine (2 eq) at rt under a nitrogen atmosphere. After stirring for 1 h the reaction was concentrated in vacuo to give the ethyl urea (0.023 g, 98%) as a viscous oil. MS (M+H)⁺=468.

(302c) Following a procedure analogous to that used in step (1f), the ethyl urea lactam methyl ester product from (302b) (0.023 g, 0.049 mmol) was converted to the crude hydroxamic acid which was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the title compound (0.015 g, 64%) as a white amorphous solid. MS (M+Na)⁺=491.

Example 303 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-3-[(methylsulfonyl)amino]-2-oxo-1-pyrrolidineacetamide

(303a) Following the procedures analogous to that used for the preparation of example (302), but using methane sulfonyl chloride in step (302b) the crude hydroxamic acid was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the title compound (0.010 g, 35%) as a white amorphous solid. MS (M+Na)⁺=498.

Example 304 [1(R)]-N-[3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl[-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-3-pyridineacetamide Mono(trifluoroactate)

(304a) The amino lactam methyl ester (302a) (0.05 g, 0.098 mmol) was combined with 3-pyridinyl acetic acid (0.026 g, 0.15 mmol), HATU (0.057 g, 0.15 mmol), NMM (3 eq),and DMF (1 mL) at rt under nitrogen atmosphere. The reaction was stirred for 18 h, partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over MgSO4, and concentrated in vacuo to give the amide product as a crude oil. MS (M+H)⁺=515, MS (M+Na)⁺=538.

(304b) Following a procedure analogous to that used in step (1f), the pyridinyl acetamide lactam methyl ester from step (304a) (0.05 g, 0.098 mmol) was converted to the crude hydroxamic acid which was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the title compound (0.025 g, 49%) as a white amorphous solid. MS (M+H)⁺=517.

Example 305 [1(R)]-N-[3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-4-pyridinecarboxamide Mono(trifluoroacetate)

(305a) Following the procedures analogous to that used for the preparation of example (302), but using isonicotinoyl chloride in step (302b) the crude hydroxamic acid was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the title compound (0.035 g, 71%) as a white amorphous solid. MS (M+H)⁺=503.

Example 306 [1(R)]-3-Amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(306a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the crude hydroxamic acid was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the title compound (0.045 g, 33%) as a white amorphous solid. MS (M−H)⁻=437, 439.

Example 307 [1(R)]-N-[3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-4-pyridinecarboxamide bis(Trifluoroacetate)

(307a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with isonicotinoyl chloride similar to example (304a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.02 g, 20%) as a white amorphous solid. MS (M+H)⁺=544, 546.

Example 308 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-3-[[(ethylamino)carbonyl]amino3-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(308a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with ethyl isocyanate similar to example (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.04 g, 25%) as a white amorphous solid. MS (M+Na)⁺=532, 534.

Example 309 [1(R)]-1,1-Dimethylethyl[2-[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]amino]-2-oxoethyl]carbamate Mono(trifluoroacetate)

(309a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with N-Boc glycine acid similar to example (304a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.02 g, 25%) as a white amorphous solid. MS (M+Na)⁺=618, 620.

Example 310 [1(R)]-3-[(Aminoacetyl)amino]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(310a) The N-Boc glycine compound example (309) was dissolved in methylene chloride (0.5 mL) and TFA (0.5 mL) at rt under a nitrogen atmosphere. The reaction was stirred for 1 h, concentrated in vacuo to give a residue which was triturated with ethyl ether to give the title compound (0.01 g 82%) as a white solid. MS (M+H)⁺=496, 498.

Example 311 [1(R)]-N-[3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]-3-pyridineacetamide bis(Trifluoroacetate)

(311a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 3-pyridinyl acetic acid similar to example (304a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.045 g, 23%) as a white amorphous solid. MS (M+H)⁺=558, 560.

Example 312 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[[(phenylmethyl)amino]carbonyl]amino]-1-pyrrolidineacetamide

(312a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with benzyl isocyanate similar to example (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.05 g, 33%) as a white amorphous solid. MS (M+Na)⁺=594, 596.

Example 313 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-3-[[[(2,4-dimethoxyphenyl)amino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide

(313a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 2,4-dimethoxy phenylisocyanate similar to example (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.035 g, 27%) as a white amorphous solid. MS (M+Na)⁺=640,642.

Example 314 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide

(314a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with phenylisocyanate similar to example (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.016 g, 13%) as a white amorphous solid. MS (M+Na)⁺=580, 582.

Example 315 [1(R)]-1,1-Dimethylethyl[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]carbamate

(314a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the N-Boc lactam methyl ester from step (i) was reacted with hydroxylamine hydrochloride similar to example (1f), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.04 g, 42%) as a white amorphous solid. MS (M+Na)⁺=561, 563.

Example 316 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-3-[[[2-(4-morpholinyl)ethyl]amino]carbonyl]amino]-2-oxo-1-pyrrolidineacetamide

(316a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) (0.10 g, 0.18 mmol) was dissolved in methylene chloride (3 mL) and saturated sodium bicarbonate solution (1 mL), cooled to 0° C., phosgene in toluene solution was added and the reaction was stirred vigorously for 15 minutes. The reaction was diluted with methylene chloride washed with brine, dried over magnesium sulfate and concentrated to give an oil. The oil was taken up in methylene chloride (2 mL) and the amino ethyl morpholine (0.047 g, 0.36 mmol) was added. The reaction was stirred for 0.5 h at rt and was concentrated to give the urea (0.09 g, 84%) as a crude product. MS (M+H)⁺=594, 596.

(316b) The urea lactam methyl ester from step (316a) was reacted with hydroxylamine hydrochloride similar to example (1f), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 28%) as a white amorphous solid. MS (M+H)⁺=595, 597.

Example 317 [1(R)]-1,1-dimethylethylN-[[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]amino]carbonyl]glycine

(317a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with t-butyl glycine ester similar to steps (316a and 316b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.04 g, 37%) as a white amorphous solid. MS (M+Na)⁺=618, 620.

Example 318 [1(R)]-3-[4-[-(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide

(318a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 2-amino thiazole similar to steps (316a and 316b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.045 g, 44%) as a white amorphous solid. MS (M+H)⁺=565, 567.

Example 319 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[(4-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(319a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 4-amino pyridine similar to steps (316a and 316b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.035 g, 32%) as a white amorphous solid. MS (M+Na)⁺=581, 583.

Example 320 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-[[[(3-hydroxyphenyl)amino]carbonyl]amino]-alpha-methyl-2-oxo-1-pyrrolidineacetamide

(320a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 3-hydroxy aniline similar to steps (316a and 316b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.011 g, 14%) as a white amorphous solid. MS (M+Na)⁺=596,598.

Example 321 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-3-[[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]amino]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide

(321a) Following the procedures analogous to that used for the preparation of example (300), but using alanine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 5-amino-1,3-dihydro-2H-benzimiazol-2-one similar to steps (316a and 316b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.02 g, 22%) as a white amorphous solid. MS (M+Na)⁺=636, 638.

Example 322 [1(R)]-3-Amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(322a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), the sulphide from step (g) was oxidized (2.6 g, 5.10 mmol) by Oxone (12.55 g, 20.5 mmol) in methanol water solution, at rt. The methanol was removed in vacuo and the aqueous layer was extracted with methylene chloride (2×). The combined organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give the sulfone (2.6 g, 91%) as a white foam. MS (M+Na)⁺=583.

(322b) Following the procedures analogous to that used for the preparation of example (300) steps (h through k), but using the sulfide compound from step (322a) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 30%) as a white amorphous solid. MS (M+H)⁺=532, 533.

Example 323 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(323a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to example (322a) and 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.035 g, 35%) as a white amorphous solid. MS (M+H)⁺=491.

Example 324 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide

(324a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to example (322a) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 2-amino thiazole similar to example (316a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.054 g, 20%) as a white amorphous solid. MS (M+H)⁺=657, 659.

Example 325 [1(R)]-3-[4-[(2,6-Dimethyl-4-pridinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(325a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to example (322a) and 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 2-amino thiazole similar to example (316a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.055 g, 40%) as a white amorphous solid. MS (M+H)⁺=617.

Example 326 [5(R)]-2-Propenyl[5-[3-amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate Mono(trifluoroacetate)

(326a) Following the procedures analogous to that used for the preparation of example (300), but using g-N-Alloc lysine methyl ester in step (300f) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.012 g, 18%) as a white amorphous solid. MS (M+H)⁺=580, 582.

Example 327 [5(R)]-2-Propenyl[5-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate bis(Trifluoroacetate)

(327a) Following the procedures analogous to that used for the preparation of example (300), but using g-N-Alloc lysine methyl ester in step (300f) and 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.025 g, 25%) as a white amorphous solid. MS (M+Na)⁺=562.

Example 328 [1(R)]-3-Amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(328a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 35%) as a white amorphous solid. MS (M+H)⁺=481, 483.

Example 329 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide

(329a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 2-amino thiazole similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.01 g, 25%) as a white amorphous solid. MS (M+Na)⁺=629, 631.

Example 330 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-thiazolylamino)carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(330a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted 2-amino thiazole similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient to give the hydroxamic acid product (0.01 g, 20%) as a white amorphous solid. MS (M+H)⁺=567.

Example 331 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(331a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 2-amino pyridine similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.02 g, 20%) as a white amorphous solid. MS (M+Na)⁺=623, 625.

Example 332 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[(trifluoroacetyl)amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(332a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with trifluoroacetic anhydride similar to step (302b), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.051 g, 25%) as a white amorphous solid. MS (M+H)⁺=537.

Example 333 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(2-pyridinylamino)carbonyl]amino]-1-pyrrolidineacetamide bis(Trifluoroacetate)

(333a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 2-amino pyridine similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 25%) as a white amorphous solid. MS (M+H)⁺=561.

Example 334 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl-3-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(phenylsulfonyl)amino]carbonyl]amino]-1-pyrrolidineacetamide

(334a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with benzenesulfonyl isocyanate similar to step (302b), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.025 g, 20%) as a white amorphous solid. MS (M+Na)⁺=686, 688.

Example 335 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(phenylsulfonyl)amino]carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(335a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with benzenesulfonyl isocyanate similar to step (302b), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.035 g, 30%) as a white amorphous solid. MS (M+H)⁺=624.

Example 336 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-[[[(3-methyl-5-isothiazolyl)amino]carbonyl]amino]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(336a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 5-amino-3-methyl isothiazole similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.01 g, 20%) as a white amorphous solid. MS (M+H)⁺=621,623.

Example 337 [1(R)]-3-[[(1H-Benzimidazol-2-ylamino)carbonyl]amino]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(337a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 2-amino benzimidazole similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.005 g, 5%) as a white amorphous solid. MS (M+H)⁺=640, 642.

Example 338 [1(R)]-3-[[(1H-Benzimidazol-2-ylamino)carbonyl]amino]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methyl]propyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(338a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with 2-amino benzimidazole similar to step (316a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.015 g, 25%) as a white amorphous solid. MS (M+H)⁺=600.

Example 339 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(339a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with benzene isocyanate similar to step (302b), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.02 g, 20%) as a white amorphous solid. MS (M+H)⁺=560.

Example 340 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[(phenylamino)carbonyl]amino]-1-pyrrolidineacetamide

(340a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dichloro-4-picolyl chloride hydrochloride in step (300i), the amino lactam methyl ester from step (j) was reacted with benzene isocyanate similar to step (302b), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.015 g, 20%) as a white amorphous solid. MS (M+Na)⁺=622, 624.

Example 341 [1(R)]-1-[1-[(hydroxyamino)carbonyl]-3-methylbutyl]-N,N,N-trimethyl-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-pyrrolidinemethanaminium Trifluoroacetate

(341a) Following the procedures analogous to that used for the preparation of example (300), but using benzyl bromide in step (300i), the amino lactam methyl ester from step (j) was reacted with methyl iodide and triethylamine in DMSO at rt. The reaction was partitioned between ethyl acetate and saturated sodium bicarbonate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give an oil. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the trimethyl amino lactam product (0.025 g, 61%) as an oil. MS (M+H)⁺=453.

(341b) Following the procedures analogous to that used for the preparation of step (1f) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.01 g, 50%) as a white amorphous solid. MS (M+H)⁺=454.

Example 342 [1(R)]-3-Amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(342a) Following the procedures analogous to that used for the preparation of example (300), but using 4-chloromethyl quinoline hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 52%) as a white amorphous solid. MS (M+H)⁺=463, MS (M−NH2)⁺=446.

Example 343 [1(R)]-3-Amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-(2-oxo-2-phenylethoxy)phenyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(343a) Following the procedures analogous to that used for the preparation of example (300), but using 2-bromoacetophenone in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 52%) as a white amorphous solid. MS (M+H)⁺=455.

Example 344 [1(R)]-3-Amino-3-[4-[(3,5-Dimethyl-4-isoxazolyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide

(344a) Following the procedures analogous to that used for the preparation of example (300), but using 4-(chloromethyl)-3,5-dimethyl-isoxazole in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 53%) as a white amorphous solid. MS (M+H)⁺=431, MS (M−NH2)⁺=414.

Example 345 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide bis[Trifluoroacetate)

(345a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.160 g, 55%) as a white amorphous solid. MS (M+H)⁺=441.

Example 346 [1(R)]-3-Amino-3-[4-[2-(2-benzothiazolylamino)-2-oxoethoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(346a) Following the procedures analogous to that used for the preparation of example (300), but using 2-chloro-N(2-benzthiazole)acetamide in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.08 g, 56%) as a white amorphous solid. MS (M+H)⁺=512, MS (M−NH2)⁺=495.

Example 347 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-methoxy-4-quinolinyl)methoxy]phenyl]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(360a) Following the procedures analogous to that used for the preparation of example (300), but using 2-methoxy-4-bromomethyl quinoline in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=493, MS (M−NH2)⁺=476.

Example 348 [1(R)]-3-Amino-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[4-[(2-phenyl-4-quinolinyl)methoxy]phenyl]-1-pyprrolidineacetamide Mono(trifluoroacetate)

(362a) Following the procedures analogous to that used for the preparation of example (300), but using 2-phenyl-4-chloromethyl quinoline hydrochloride in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=539.

Example 349 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropzyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(363a) Following the procedures analogous to that used for the preparation of example (300), but using 2,6-dimethyl-4-chloromethyl quinoline hydrochloride in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=491.

Example 350 [1(R)]-3-Amino-3-[4-[(2-chloro-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(350a) Following the procedures analogous to that used for the preparation of example (300), but using 2-chloro-4(chloromethyl)quinoline hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 20%) as a white amorphous solid. MS (M+H)⁺=497, 499.

Example 351 [1(R)]-3-Amino-3-[4-[2-(2,5-dimethoxyphenyl)-2-(hydroxyimino)ethoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(351a) Following the procedures analogous to that used for the preparation of example (300), but using 2-bromo-2′,5′-dimethoxy acetophenone in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.0 g, %) as a white amorphous solid. MS (M+H)⁺=515.

Example 352 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-methylimidazo[1,2-a]pyridin-3-yl)methoxyl]phenyl]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(352a) Following the procedures analogous to that used for the preparation of example (300), the phenol from step (300 h) (0.15 g, 0.35 mmol)was combined with 3-hydroxylmethyl-2-methyl-imidazoylpyridine (0.086 g, 0.53 mmol), DEAD, triphenylphosphine and benzene at rt. The reaction was stirred for 2 h, partitioned between ethyl acetate and water, the organic layer was washed with brine dried over magnesium sulfate and concentrated in vacuo to give an oil. The product was purified by flash chromatography on silica gel eluting ethyl aceatae to give the alkated product (0.088 g, 44%) as an oil. MS (M+H)⁺=565.

(352b) Following the procedures analogous to that used for the preparation of example (300) and step (1f) the compound from step (352a) was reacted to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.065 g, 72%) as a white amorphous solid. MS (M+H)⁺=466.

Example 353 [1(R)]-3-Amino-3-(4-[(1,4-dimethyl-2-(methylthio)-1H-imidazol-5-yl]methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(353a) Following the procedures analogous to that used for the preparation of example (300), the phenol from step (h) was treated with 2-thiomethyl-3N-5-dimethyl-4-hydroxymethyl imidazole similar to step (352a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.09 g, 44%) as a white amorphous solid. MS (M+H)⁺=476.

Example 354 [1(R)]-3-Amino-3-[4-[[1,5-dimethyl-2-(methylthio)-1H-imidazol-4-yl]methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(354a) Following the procedures analogous to that used for the preparation of example (300), the phenol from step (h) was treated with 2-thiomethyl-3N-methyl-4-methyl-5-hydroxymethyl imidazole similar to step (352a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.04 g, 45%) as a white amorphous solid. MS (M+H)⁺=476.

Example 355 [1(R)]-3-Amino-3-[4-[(2,4-dimethyl-5-thiazolyl)metboxy]phenyl]-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(355a) Following the procedures analogous to that used for the preparation of example (300), the phenol from step (h) was treated with 2,4-dimethyl-5-hydroxymethyl thiazole similar to step (352a), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.150 g, 75%) as a white amorphous solid. MS (M+H)⁺=447.

Example 356 [1(R)]-3-Amino-N-hydroxy-alpha-(2-methylpropyl)-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(356a) Following the procedures analogous to that used for the preparation of example (300), but using 2-methyl-4-chloromethyl quinoline hydrochloride similar to step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.055 g, 70%) as a white amorphous solid. MS (M+H)⁺=477.

Example 357 [1(R)]-3-Amino-3-[4-[(2-chloro-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(357a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to example (322a), and 2-chloro-4-chloromethyl quinoline hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=547, 549, MS (M−NH2)⁺530, 532.

Example 358 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-methyl-4-qinolinyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(358a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to step (322a) and 2-methyl-4-chloromethyl quinoline hydrochloride in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=527.

Example 359 [1(R)]-3-Amino-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-N-hydroxy-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(359a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), oxidation methods similar to step (322a),3,5-dimethoxy benzyl bromide in step (300i) and the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=522, MS (M−NH2)⁺505.

Example 360 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-methoxy-4-quinolinyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(361a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), 2-methoxy-4-bromomethyl quinoline in step (300i) and oxidation similar to prep (322a) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=543, MS (M−NH2)⁺=526.

Example 361 [1(R)]-3-Amino-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(361a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethoxy benzyl bromide in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M−NH2)⁺=455.

Example 362 [1(R)]-3-Amino-3-[4-[(2-methoxy-5-nitrophenyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylproxyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(362a) Following the procedures analogous to that used for the preparation of example (300), but using 2-methoxy-5-nitro benzylbromide in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.065 g, 25%) as a white amorphous solid. MS (M−NH2)⁺=470.

Example 363 [1(R)]-3-Amino-3-[4-[(5-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(363a) Following the procedures analogous to that used for the preparation of example (300), but using 5-chloromethyl quinoline in step (300i), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.055 g, 50%) as a white amorphous solid. MS (M−NH2)⁺=446.

Example 364 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-methoxy-5-nitrophenyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(364a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), 2-methoxy-5-nitro-benzylbromide in step (300i) and oxidation similiar to step (322a) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.17 g, 60%) as a white amorphous solid. MS (M+H)⁺=543, MS (M−NH2)⁺=520.

Example 365 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-nitro-4,5-dimethoxy-phenyl)methoxy]phenyl]-alpha-[(2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(365a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), 2-nitro-4,5-dimethoxy benzylbromide in step (300i) and oxidation similiar to step (322a) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 42%) as a white amorphous solid. MS (M+H)⁺=567, MS (M−NH2)⁺=550.

Example 366 [1(R)]-3-Amino-N-hydroxy-3-[4-[(2-phenyl-4-quinolinyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(366a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), 2-phenyl-4-bromomethyl quinoline in step (300i) and oxidation similiar to step (322a) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.07 g, 25%) as a white amorphous solid. MS (M+H)⁺=589.

Example 367 [1(R)]-3-Amino-N-hydroxy-3-[4-[(3,5-dimethyl-4-isoxazolyl)methoxy]phenyl]-alpha-[2-(methylsulfonyl)ethyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(367a) Following the procedures analogous to that used for the preparation of example (300), but using methionine methyl ester in step (300f), 4-(chloromethyl)3,5-dimethyl-isoxazole in step (300i) and oxidation similiar to step (322a) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 5%) as a white amorphous solid. MS (M+H)⁺=481, MS (M−NH2)⁺=464.

Example 368 [1(R)]-3-Amino-3-[4-[(phenyl)methoxy]phenyl]-N-hydroxy-alpha-[(4-hydroxyphenyl)methyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(368a) Following the procedures analogous to that used for the preparation of example (300), but using tyrosine methyl ester in step (300f), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.10 g, 50%) as a white amorphous solid. MS (M+H)⁺=462, MS (M−NH2)⁺=445.

Example 369 [1(R)]-3-Amino-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-alpha-[(4-methoxyphenyl)methyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(369a) Following the procedures analogous to that used for the preparation of example (300), but using O-methyl tyrosine methyl ester in step (300f) and 2-methyl-4-bromomethyl quinoline in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 53%) as a white amorphous solid. MS (M+H)⁺=541, MS (M−NH2)⁺=524.

Example 370 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-[(4-methoxyphenyl)methyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(370a) Following the procedures analogous to that used for the preparation of example (300), but-using O-methyl-tyrosine methyl ester in step (300f) and 2,6-dimethyl-4-bromomethyl pyridine in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.095 g, 77%) as a white amorphous solid. MS (M+H)⁺=505, MS (M−NH2)⁺=488.

Example 371 [1(R)]-3-Amino-3-[4-[(phenyl)methoxy]phenyl]-N-hydroxy-alpha-[(4-methoxyphenyl)methyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(371a) Following the procedures analogous to that used for the preparation of example (300), but using O-methyl tyrosine methyl ester in step (300f) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.051 g, 25%) as a white amorphous solid. MS (M+H)⁺=476, MS (M−NH2)⁺=459.

Example 450 [1(R)]-3-(Aminomethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(450a) 4-Hydroxybenzyl cyanide (2.5 g, 18.77 mmol), benzyl bromide (3.8 g, 22:5 mmol) and potassium carbonate (45 mmol) were combined in acetone (50 mL) and heated to reflux for 8 h. The reaction was allowed to cool to rt, diluted with ethyl acetate and filtered to remove the solids. The organic layer was concentrated in vacuo to give an oil. The crude benzyl ether was purified by chromatography on silica gel eluting hexane:ethyl acetate (90:10, v:v) to give 4-benzyloxybenzyl cyanide (4.0 g, 95%) which solidified. MS (M+NH4)⁺=241.

(450b) The 4-benzyloxybenzyl cyanide from step (450a)(3.2 g, 14.33 mmol), sodium ethoxide (1.07 g, 15.7 mmol), and diethyl carbonate (2.23 g, 18.9 mmol) were combined in toluene (100 mL), heated to reflux for 3 h, cooled to rt, and partioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (80:20, v:v) to give ethyl 2-(4-benzyloxyphenyl)cyanoacetate (4.2 g, 99%) as an oil. MS (M+NH4)⁺=313.

(450c) The ethyl 2-(4-benzyloxyphenyl)cyanoacetate from step (450b) (3.7 g, 12.5 mmol) in DMF (20 mL) was added to a suspension of hexane washed sodium hydride (0.36 g, 15.0 mmol) in DMF (35 mL) cooled in an ice bath under nitrogen. The reaction was allowed to stir for 1 h and the allyl bromide (2.9 g, 24.0 mmol) was added. The reaction was allowed to warm to rt and was stirred for 1 h. The reaction was partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give an oil. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (90:10, v:v) to give ethyl 2-(4-benzyloxyphenyl)-2-allyl cyanoacetate (4.0 g, 95%) as an oil. MS (M+NH4)⁺=353.

(450d) Lithium hydroxide hydrate (1.13 g, 26.8 mmol) in water (20 mL) was added to a solution of ethyl 2-(4-benzyloxyphenyl)-2-allyl cyanoacetate from step (450c) (4.5 g, 13.42 mmol) in methanol (100 mL) at rt. The reaction was stirred for 5 h, partitioned between ethyl acetate and 1 N HCL. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give 2-(4-benzyloxyphenyl)-2-allyl cyanoacetic acid (4.1 g, 100%) as an oil. MS (M+NH4)⁺=325.

(450e) The 2-(4-benzyloxyphenyl)-2-allyl cyanoacetic acid from step (450d) (2.34 g, 12.88 mmol), TBTU(5.17 g, 16.11 mmol), NMM (4 eq) and DMF (50 mL) were combined and stirred for 15 minutes then the leucine methyl ester (2.34 g, 12.86 mmol) was added. The reaction was allowed to stir at rt for 18 h, partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give an oil. The crude was purified by chromatography on silica gel eluting hexane: ethyl acetate (80:20, v:v) to give the amide (1.9 g, 34%) as an oil. MS (M+NH4)⁺=452.

(450f) Ozone was bubbled through a solution of the amide from step (450e) (1.9 g, 4.37 mmol) and methylene chloride (50 mL) cooled to −78° C. After 20 minutes the reaction turned blue, oxygen and then nitrogen were bubbled through the reaction solution. The triphenylphosphine (1.15 g, 4.37 mmol) was added and the reaction was allowed to warm to rt and stirred for 4 h. The reaction was concentrated in vacuo to give an oil. The crude product was purified by chromatography on silica gel eluting ethyl ether (100%) to give the aldehyde (1.9 g, 100%) as an oil. MS (M+Na)⁺=459.

(450g) The aldehyde of step (450f) (1.9 g, 4.37 mmol) was dissolved in methylene chloride (15 mL), triethylsilane (5 mL), and TFA (2 mL) at rt under nitrogen. The reaction was stirred for 4 h and was concentrated in vacuo to give an oil. The crude product was purified by chromatography on silica gel eluting hexane:ethyl acetate (70:30, v:v) to give the cyano lactam (1.55 g, 68%) as an oil. MS (M+NH4)⁺=438.

(450h) The cyano lactam from step (450g) (1.55 g, 3.68 mmol) was dissolved in methanol (50 mL) degassed with nitrogen, then HCl (conc) (5 drops) and 10% Pd/C were added, the reaction was charged to 50 PSI hydrogen and shaken for 18 h. The catalyst was removed over celite, the organic layer concentrated in vacuo to give the aminomethyl lactam (1.2 g, 97%) as a foam. MS (M+Na)⁺=335.

(450i) The di-t-butyl dicarbonate (0.85 g, 3.88 mmol) was added to a solution of aminomethyl lactam from step (450h) (1.2 g, 3.24 mmol) and TEA (4 eq) in DMF (20 mL) at rt. The reaction was stirred for 4 h, partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give an oil. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (50:50, v:v) to give the N-Boc aminomethyl lactam (0.9 g, 64%) as a foam. MS (M+Na)⁺=457.

(450j) Following the procedures analogous to that used for the preparation of example (300), but using 3 5-dimethyl-4-picolyl chloride hydrochloride in step (300i), the removal of the N-Boc protecting group similar to step (300j) the compound from step (450i) was converted to the aminomethyl lactam methyl ester (0.64 g, 100%) isolated as an oil. MS (M+H)⁺=454.

(450k) Following the procedures analogous to that used for the preparation of example (1f), the aminomethyl lactam methyl ester from step (450j) (0.10 g, 0.146 mmol) was converted to title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 30%) as a white amorphous solid. MS (M+H)⁺=455.

Example 451 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-(2-methylpropyl)-2-oxo-3-[[[(2-thiazolylamino)carbonyl]amino]methyl]-1-pyrrolidineacetamide Mono(trifluoroacetate)

(451a) Following the procedures analogous to that used for the preparation of example (450), the aminomethyl lactam methyl ester from step (450j) was reacted with 2-isocyano thiazole similar to step (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.075 g, 60%) as a white amorphous solid. MS (M+H)⁺=581.

Example 452 [1(R)]-3-(Aminomethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(452a) Following the procedures analogous to that used for the preparation of example (450), but using alanine methyl ester in step (450e) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (450j), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.035 g, 35%) as a white amorphous solid. MS (M+H)⁺=453, 455.

Example 453 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2-oxo-3-[[[(2-thiazolylamino)carbonyl]amino]methyl]-1-pyrrolidineacetamide

(453a) Following the procedures analogous to that used for the preparation of example (450), but using alanine methyl ester in step (450e) and 3,5-dichloro-4-picolyl chloride hydrochloride in step (450j), the aminomethyl lactam methyl ester similar step (450j) was reacted with 2-isocyano thiazole similar to step (302b), to prepare the title compound. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 47%;) as a white amorphous solid. MS (M+H)⁺=579, 581.

Example 454 [1(R)]-4-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-4-dimethyl-5-oxo-1-imidazolidineacetamide Mono(trifluoroacetate)

(454a) Following the procedures analogous to that used for the preparation of example (300), but using 3,5-dimethyl benzyl bromide in step (300c) and methyl iodide in step (300d) the 4-(3,5-dimethylbenzyloxy) phenyl glycine methyl ester was prepared (1.65 g, 80%) as an oil. MS (M+H, -t-but)⁺=357.

(454b) Following the procedures analogous to that used for step (450d), the methyl ester from step (454a) was converted to the 4-(3,5-dimethylbenzyloxy) phenyl glycine acid (1.5 g, 97%) as an oil. MS (M+Na)⁺=422.

(454c) Following the procedures analogous to.that used for step (450e), but using alanine methyl ester the 4-(3,5-dimethylbenzyloxy) phenyl glycine acid form step (454b) (1.5 g, 97%) was converted to the diamino acid. The crude was purified by chromatography on silica gel eluting hexane: ethyl acetate (75:25, v:v) as to give the alanine-phenyl glycine compound (1.4 g, 75%) as a foam. MS (M+H)⁺=485.

(454d) Following the procedures similar to that used for step (300j), the N-Boc group of the alanine-phenyl glycine compound from step (454c) was removed to give the amino compound (1.2 g, 97%) as an oil. MS (M+H)⁺=385, MS (M−NH2)⁺=368.

(454e) Paraformaldehyde (0.006 g, 0.2 mmol) was added to a solution of the amino compound from step (454d) in toluene (5 mL) and NMM (2 eq), the reaction was heated to 80° C. for 4.5 h. The reaction was concentrated in vacuo to give the cyclic compound (0.1 g, 100%) as an oil. MS (M+H)⁺=397.

(454f) Following the procedures similar to that used for step (1f), but using the cyclic compound from step (454e) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.015 g, 20%) as a white amorphous solid. MS (M+H)⁺=398.

Example 455 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-3-(hydroxymethyl)-alpha-methyl-2-oxo-1-pyrrolidineacetamide

(454a) Methyl 4-hydroxyphenylacetate (8.0 g, 48.0 mmol), 3,5-dimethyl benzyl bromide (12.0 g, 60.0 mmol) and potassium carbonate (8.0 g, 58.0 mmol) were combined in acetone (120 mL) and heated to reflux for 8 h. The reaction was allowed to cool, diluted with ethyl acetate and filtered to remove the solids. The organic solvent was removed in vacuo to give an oil. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (95:5, v:v) to give the methyl 4-(2,5-dimethylbenzyloxy)phenyl acetate compound (13.58 g, 99%) as an oil. MS (M+NH4)⁺=302.

(455b) LDA (2.0 M in hexane, 3.5 mL, 7.0 mmol) was added to a solution of methyl 4-(2,5-dimethylbenzyloxy phenylacetate compound from step (454a), (2.0 g, 7.0 mmol) in THF (75 mL) cooled to −78° C. under a nitrogen atmosphere. The reaction was stirred for 40 minutes and the allyl bromide (0.73 mL, 8.4 mmol) was added. The reaction was stirred at −78° C. for 5 h, allowed to warm to rt overnight and was partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (93:2, v:v) to give the methyl 2-allyl-[4-(2,5-dimethylbenzyloxy)phenyl]acetate compound (1.2 g, 53%) as an oil. MS (M+NH4)⁺=342.

(455c) Sodium methoxide (25% in methanol, 0.08 mL, 0.35 mmol) was added dropwise to a solution of the 2-allyl phenylacetate from step (455b) (1.2 g, 3.7 mmol) and parformaldehyde (0.135 g, 4.5 mmol) in DMSO (20 mL) at rt. The reaction was stirred for 1.2 h, diluted with water, acidified with 1 N HCl, and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo, to give the 2-hydroxymethylene-2-allyl phenylacetate (0.91 g, 68%) as an oil. MS (M+NH4—OCH3)⁺=342.

(455d) Following the procedures analogous to that used for step (450d), the methyl ester from step (455c) was converted to the 2-hydroxymethylene-2-allyl phenylacetic acid (0.45 g, 53%) as an oil. MS (M+Na)⁺=.

(455e) Following the procedures analogous to that used for step (450e), but using alanine methyl ester, the 2-hydroxymethylene-2-allyl phenylacetic acid from step (455d) (0.4 g, 1.2 mmol) was converted to the diamino acid. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (75:25, v:v) to give the hydroxymethylene phenylacetamide compound (0.36 g, 71%) as an oil. MS (M−H)⁻=339.

(455f) The hydroxymethylene compound from step (455e) (0.35 g, 0.82 mmol) was combined with TEA (1.3 eq), DMAP (0.025 g, 0.2 mmol), and t-butyldimethylchlorosilane (0.136 g, 0.90 mmol) in DMF (10 mL) at rt. The reaction was, stirred for 48 h, diluted with ethyl acetate, washed with saturated ammonium chloride, dried over magnesium sulfate and concentrated to give an oil. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (75:25, v:v) to give the O-t-butyldimethylsilyl hydroxymethylene compound (0.16 g, 36%) as an oil. MS (M+Na)⁺=539.

(454g) Following the procedures analogous to that used for step (450f), but using allyl phenylacetamide from step (455f) (0.4 g, 0.74 mmol) the aldehyde was prepared. The crude was purified by chromatography on.silica gel eluting hexane: ethyl ether (95:5, v:v) to give the aldehyde phenylacetamide compound (0.35 g, 87%) as an oil. MS (M+Na)⁺=564.

(455h) Following the procedures analogous to that used for step (450g), but using aldehyde phenylacetamide compound from step (455g) (0.35 g, 0.65 mmol) the hydroxymethylene lactam was prepared. The crude was purified by chromatography on silica gel eluting methylene chloride: methanol (99:1, v:v) to give the hydroxymethylene lactam compound (0.185 g, 69%) as an oil. MS (M+H)⁺=412.

(455i) Following the procedures analogous to that used for step (450d), but using hydroxymethylene lactam methyl ester compound from step (455h) (0.35 g, 0.65 mmol) the hydroxymethylene lactam acid (0.18 g, 100%) was prepared as an oil. MS (M+Na)⁺=420.

(455j) Following the procedures analogous to that used for the preparation of step (450e), but using hydroxylamine hydrochloride and the hydroxymethylene lactam acid compound from step (455i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.055 g, 30%) as a white amorphous solid. MS (M+Na)⁺=435.

Example 456 [1(R)]-[3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]methyl Ethylcarbamate

(456a) Following the procedures analogous to that used for the preparation of step (302b), but using ethyl isocyanate the hydroxymethylene lactam from step (455h), the lactam carbamate methyl ester compound (0.058 g, 100%) was prepared as an oil. MS (M+Na)⁺=505.

(456b) Following the procedures similar to that used for step (1f), but using the carbamate lactam compound from step (456a), the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.019 g, 36%) as a white amorphous solid. MS (M+Na)⁺=506.

Example 457 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(hydroxymethyl)alpha-methyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(457a) Following the procedures analogous to that used for the preparation of step (300h), but using the hydroxymethylene lactam from step (455h) and 3,5-dichloro-4-picolyl bromide hydrochloride similar to step (300i) and procedures similar to steps (455i and 455j) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 18%) as a white amorphous solid. MS (M+Na)⁺=476,478.

Example 458 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha,3-dimethyl-2-oxo-1-azetidineacetamide

(458a) Following the procedures analogous to that used for the preparation of example (455), but using methyl iodide in step (455b) the hydroxymethylene acetamide methyl ester (0.10 g, 0.25 mmol) from step (e) was reacted with methanesulfonyl chloride (0.025 mL, 0.32 mmol) in pyridine at rt, to give the methanesulfonylmethyl acetamide (0.1 g, 84%) as an oil. MS (M+Na)⁺=500.

(458b) The methanesulfonylmethyl acetamide (0.1 g, 0.21 mmol) from step (458a) was combined with potassium carbonate (0.125 g, 0.9 mmol) in acetone (3 mL), heated to reflux for 6 h, allowed to cool to rt, diluted with ethyl acetate, filtered to remove the solids and concentrated to give an oil. The crude was purified by chromatography on silica gel eluting hexane:ethyl acetate (80:20, v:v) to give the beta-lactam compound (0.05 g, 63%) as an oil. MS (M+H)⁺=382.

(458c) Following the procedures similar to that used for steps (455i and 455j), but using the beta-lactam compound from step (458b) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.03 g, 80%) as a white amorphous solid. MS (M+H)⁺=381.

Example 459 [1(R)]-3-[5-[(3,5-Dimethylphenoxy)methyl]-2-thiazolyl]-N-hydroxy-alpha,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(459a) Following the procedures similar to that used for step (300a), but using thiopheneacetic acid (7.5 g, 52.7 mmol), the methyl ester was prepared. The crude ester was purified by chromatography on silica gel eluting hexane:ethyl acetate (90:10, v:v) to give the methyl thiopheneacetate (7.5 g, 92%) as a foam. MS (M+H)⁺=157.

(459b) Following the procedures similar to that used for step (455b), but using the methyl thiopheneacetate from step (459a), the methyl 2-allyl thiopheneacetate was prepared. The crude ester was purified by chromatography on silica gel eluting hexane:ethyl acetate (95:5, v:v) to give the methyl ally thiopheneacetate (5.9 g, 73%) as a foam. MS (M+H)⁺=197.

(459c) Following the procedures similar to that used for step (455b), but using methyl iodide and the methyl allyl thiopheneacetate from step (459b), the methyl 2-allyl-2-methyl thiopheneacetate was prepared. The crude ester was purified by chromatography on silica gel eluting hexane:ethyl acetate (95:5, v:v) to give the methyl 2-ally-2-methyl thiopheneacetate (5.6 g, 89%) as an oil. MS (M+NH4)⁺=228.

(459d) Following the procedures similar to that used for step (450d), but using methyl 2-ally-2-methyl thiopheneacetate from step (459c), the 2-allyl-2-methyl thiopheneacetic acid was prepared. The crude ester was purified by chromatography on silica gel eluting toluene:ethyl acetate:acetic acid (60:40:2, v:v:v) to give the thiopheneacetic acid (2.5 g, 99%) as an oil. MS (M+NH4)⁺=214.

(459e) Following the procedures similar to that used for step (450e), but using 2-ally-2-methyl thiopheneacetic acid from step (459d) and alanine methyl ester, the thiopheneacetamide compound was prepared. The crude ester was purified by chromatography on silica gel eluting hexane:ethyl acetate (80:20, v:v) to give the thiopheneacetamide (1.5 g, 83%) as an oil. MS (M+NH4)⁺=299.

(459f) Osmium tetraoxide (catalytic) was added to a solution of thiopheneacetamide compound from step (459e) (1.5 g, 5.3 mmol), N-methyl morpholine N-oxide (1.25 g, 10.6 mmol), THF (25 mL) and water (2 mL) at rt under a nitrogen atmosphere. The reaction was stirred overnight, poured into 10% NaHSO3 and 1N HCl (50 mL) and was extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give an oil. The crude oil was dissolved in methylene chloride (25 mL) and water (5 mL). The NaIO4 (2.28 g, 10.6 mmol) was added and the reaction was stirred vigorously for 4 h. This was diluted with ethyl acetate, washed with brine, dried over magnesium sulfate and concentrated to give the aldehyde (1.5 g, 99%) as an oil. MS (M+H—H2O)⁺=266.

(459g) Following the procedures similar to that used for step (450g), but using aldehyde thiopheneacetacetamide from step (459f) the lactam compound was prepared. The crude ester was purified by chromatography on silica gel eluting hexane:ethyl acetate (70:30, v:v) to give the lactam thiophene (1.1 g, 77%) as an oil. MS (M+H)⁺=268.

(459h) Phosphorous oxychloride (0.95 g, 6.17 mmol) was added slowly to a solution of lactam thiophene from step (451g), (1.1 g, 4.11 mmol) in DMF (0.45 g, 6.17 mmol) and heated to 85° C. for 4 h. The reaction was allowed to cool, partitioned between ethyl acetate and ice water. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give the thiophene aldehyde (0.75 g, 62%) as an oil.

(459i) Sodium borohydride (0.059 g, 1.69 mmol) was added to a solution of thiophene aldehyde from step (459h) (0.5 g, 1.69 mmol) dissolved in THF (5 mL) and methanol (1 mL), at rt. The reaction was stirred for 20 minutes, partitioned between ethyl acetate and 1N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give the 5-hydroxymethylene-thiophene (0.5 g, 100%) as an oil.

(459j) The 5-hydroxymethylene-thiophene from step (459i) (5.0 g, 1.69 mmol) was combined with carbon tetrabromide (0.67 g, 2.03 mmol), triphenylphosphine (0.53, 2.03 mmol) in methylene chloride (5 mL) at rt. The reaction was stirred for 4 h and became a dark solution. This was partitioned between methylene chloride and 1N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give a dark oil. The product was purified by chromatography on silica gel eluting hexane:ethyl acetate (50:50, v:v), to give the 5-bromomethylene thiophene (0.15 g 25%) as an oil. MS (M+H-Br+OCH3)⁺=312.

(459k) Following the procedures similar to that used for step (300i), but using 5-bromomethylene thiophene from step (459j) and 3,5-dimethyl phenol, the lactam thiophene compound was prepared. The crude ester was purified by chromatography on silica gel eluting methylene chloride: ethyl acetate (95:5, v:v) to give the lactam thiophene (0.08 g, 47%) as an oil. MS (M+NH4)⁺=419.

(459l) Following the procedures similar to that used for steps (1f), but using the lactam thiophene compound from step (459k) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.015 g, 20%) as a white amorphous solid. MS (M+Na)⁺=425.

Example 460 [1(R)]-4-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha-methyl-2,5-dioxo-4-(2-propenl)-1-imidazolidineacetamide

(460a) Following the procedures similar to that used for step (300j), but using N-Boc phenyl glycine from step (300c) (0.5 g, 1.13 mmol), the deprotected phenyl glycine compound (0.51 g, 99%) was prepared as an oil.

(460b) A solution of alanine methyl ester (0.046 g, 0.33 mmol) in methylene chloride (1 mL) and DIEA (0.130 mL) was added slowly to a solution of triphosgene (0.098 g, 0.33 mmol) in methylene chloride (2 mL) at rt. The reaction was stirred for 0.5 h and a solution of deprotected phenyl glycine from step (460a) in methylene chloride (1 mL) and DIEA (0.13 mL) was added. The reaction was stirred for 2 h, partitioned between ethyl acetate and 1N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give an oil. The product was purified by chromatography on silica gel eluting methylene chloride:ethyl acetate (90:10, v:v), to give the mixed urea (0.035 g 23%) as an oil. MS (M+NH4—OCH3)⁺=454.

(460c) A suspension of the mixed urea from step (460b) (0.035 g, 0.075 mmol) and potassium carbonate (3 eq) in acetone (5 mL) was heated to reflux for 2 h. The reaction was allowed to cool, diluted with ethyl acetate and filtered to remove the solids, washed with brine and concentrated to give the hydantoin compound (0.025 g, 76%) as an oil. MS (M+NH4)⁺=454.

(460d) Following the procedures similar to that used for steps (1f), but using the hydantoin compound from step (460c) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.015 g, 60%) as a white amorphous solid. MS (M+Na)⁺=460.

Example 461 [1(R)]-N-Hydroxy-alpha,3-dimethyl-2-oxo-3-[[4-(phenylmethoxy)phenyl]methyl]-1-pyrrolidineacetamide

(461a) Triphenylphosphine (3.67 g, 14.0 mmol) and carbon tetrabromide (4.46 g, 14.0 mmol) were added to a solution of 4-benzyloxybenzyl alcohol (2.0 g, 9.3 mmol) in dichloromethane (25 mL) at 0° C. The mixture was warmed to rt for 2.5 h and then concentrated. The residue was triturated with ether, and the solids filtered off. Filtrate was concentrated. Residue purified by silica gel chromatography (ethyl acetate:hexanes, 5:95, v:v). Residue from chromatography was purified further with treatment with ether and filtration of solids. Filtrate was concentrated in vacuo to yield the desired bromide (2.34 g, 90%) as a white solid. MS found: (M−Br)⁺=197.

(461b) A 2.0 M THF solution of lithium diisopropylamide (2.6 mL, 1.15 eq) was added over 10 minutes to a solution of ethyl 2-methyl-4-pentenoate (0.75 mL, 4.6 mmol) in THF (18 mL) at −78° C. The mixture was warmed to −55° C. for 40 minutes then cooled to −78° C. A solution of bromide compound from step (461a) (1.92 g, 6.9 mmol) in THF was added over 5 minutes to the cooled mixture. After 1 h at −78° C. the mixture was warmed to rt and 1 M HCl (30 mL) was added. The mixture was extracted with ethyl acetate (2×30 mL). The combined organic extracts were washed successively with 1N HCl (20 mL), saturated aqueous sodium bicarbonate (20 mL), water (20 mL), brine (20 mL), dried (MgSO4) and concentrated. The residue was purified by silica gel chromatography (hexane, then ethyl acetate:hexanes 2:98, v:v) to give the desired product (950 mg, 60%) as a clear oil. MS found: (M+NH4)⁺=356.

(461c) Ozone was bubbled through a solution of compound (461b) (0.90 g, 2.6 mmol) in dichloromethane (30 mL) at −78° C. until a blue color persisted in the solution. The mixture was purged with oxygen and treated with triphenylphosphine (0.84 g, 3.2 mmol). The reaction mixture was allowed to warm to rt and stirred for 1 h, then was concentrated in vacuo. The residue was purified by silica gel chromatography (hexane, then ethyl acetate:hexanes 6:94, v:v) to give the desired aldehyde (0.70 g,75%) as a clear oil. MS found: (M+H)⁺=341.

(461d) Following the procedures similar to that used for steps (1d, 1e and 1f), but using the aldehyde compound from step (461c) (650 mg, 1.9 mmol) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.065 g, 20%) as a white amorphous solid. MS (M+Na)⁺=405.

Example 462 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(methylamino)-alpha-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(462a) Following the procedures analogous to that used for the preparation of example (300), the N-Boc phenyl glycine compound from step (300d) (3.59 g, 8.72 mmol) was treated with sodium hydride (0.42 g, 17.45 mmol) in DMF (25 mL) at 0° C. for 1 h. The methyl iodide (2.47 g, 17.45 mmol) was added, the reaction was allowed to stir for 2 h at rt, partitioned between ethyl acetate and 1N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give the N-methyl-N-Boc phenyl glycine (3.6 g, 97%) as an oil. MS (M+Na)⁺=448.

(462b) Following the procedures analogous to that used for the preparation of example (300), but using the N-methyl-N-Boc phenyl glycine compound from step (462a) and using 2,6-dimethyl picolyl chloride hydrochloride in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=455.

Example 463 [1(R)]-N-Hydroxy-3-(methylamino)-alpha-(2-methylpropyl)-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(463a) Following the procedures analogous to that used for the preparation of example (462), but using 2-methyl-4-chloromethyl qunoline hydrochloride in step (300i) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.12 g, 34%) as a white amorphous solid. MS (M+H)⁺=491.

Example 464 [1(R)]-Alpha,3-dimethyl-N-hydroxy-2-oxo-3-[4-(phenylmethoxy)phenyl]-1-piperidineacetamide

(464a) Following the procedures analogous to that used for the preparation of example (1), the ester from step (1b) was treated with lithium hydroxide similar to step (450d) to give the carboxylic acid, which was coupled to alanine methyl ester similar to step (450e), to give the alanyl-phenyl glycine diamino acid as an oil. MS (M+H)⁺=382.

(464b) 9-BBN (5.0 eq) was added to a solution of the olefin from Step (464a) (0.45 g, 1.18 mmol) in THF (10 mL) cooled to 0° C. under nitrogen. The reaction was allowed to warm to rt and stir overnight at rt. The reaction was cooled to 0° C. and water (2 mL) was added. The reaction was stirred for 20 minutes, then sodium acetate (1 g, in 2 mL water) and H2O2 (30%) (2.5 mL) were added simultaneously. This was stirred for 40 minutes, concentrated in vacuo, diluted with ethyl acetate and washed with water, brine, dried over magnesium sulfate and concentrated in vacuo to give the alcohol. The crude product was purified by chromatography on silica gel eluting methylene chloride:ethyl acetate (1:1, v:v) to give the alcohol (0.41 g, 87%) as an oil. MS (M+H)⁺=400.

(464c) Following the procedure similar to that used for the preparation of step (459j), but using the alcohol from step (464b), the bromide was prepared. The crude product was purified by chromatography on silica gel eluting hexane: ethyl acetate (2:1, v:v) to give the bromide (0.145 g, 71%) as an oil. MS (M+H)⁺=462, 464.

(464d) The bromide from step (464c) (0.145 g, 0.313 mmol) was treated with sodium hydride (0.019 g, 0.47 mmol) in THF (10 mL) cooled to 0° C. under nitrogen. The reaction was stirred for 1.5 h, then partitioned between ethyl acetate and 1N HCl. The organic layer was washed with water, brine, dried over magnesium sulfate and concentrated in vacuo to give the lactam (0.105 g, 84%) as an oil. MS (M+H)⁺=382.

(464e) Following the procedures analogous to that used for step (1f), but using the lactam from step (464d) the title compound was prepared. The product was purified by reverse phase HPLC on a Vydac C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid product (0.062 g, 60%) as a white amorphous solid. MS (M+Na)⁺=405.

Example 501 [1(R)]-α-[3-Amino-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

(501a) Following a procedure analogous to (300f), the aldehyde from (300e) (2.80 g, 6.77 mmol) and amino ester from (142b) (2.42 g, 1.1 eq) were coupled to give the secondary amine as a crude material. MS found: (M+H)⁺=670.

(501b) Following a procedure analogous to (300g), the crude amine from (501a) was converted to the lactam. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 30:70) provided the less polar isomer (1.40 g) and the more polar isomer (1.30 g). The total yield is 63% for two steps. MS found: (M+Na)⁺=660.

(501c) Following a procedure analogous to step (3a), the less polar lactam from (501b) (1.30 g, 2.04 mmol) was hydrogenolized to give the phenol (1.10 g, 98%). MS found: (M+H)⁺=548.

(501d) Following a procedure analogous to step (6b), the phenol from (501c) (100 mg, 0.183 mmol) was reacted with 4-chloromethylquinoline hydrochloride to give the ether (75.5 mg, 60%). MS found: (M+H)⁺=689.

(501e) Following a procedure analogous to step (92d), the ester from (501d) (69.0 mg, 0.100 mmol) was reacted with hydroxylamine to give the hydroxamic acid (36.0 mg, 52%). MS found: (M+H)⁺=690.

(501f) Following a procedure analogous to example 117, the hydroxamic acid from (501e) (30.0 mg, 0.0362 mmol) was reacted with trifluoroacetic acid to give the hydroxamic acid tris(trifluoroacetate) (40.0 mg, 100%). MS found: (M+H)⁺=490.

Example 502 [1(R)]-α-[3-Amino-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c) and 4-bromomethyl-2,6-dichloropyridine, example 502 was prepared in an analogous series of reactions to (6b), (92d) and example 117. MS found: (M+H)⁺=508.

Example 503 [1(R)]-1,1-Dimethylethyl4-[1-[3-[[(1,1-dimethylethoxy)carbonyl]amino]-3-[4-[(1,1-dimethyl-4-pridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate Mono(trifluoroacetate)

(503a) Following a procedure analogous to step (6b), the phenol from (501c) (1.67 g, 3.05 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine hydrochloride to give the picolyl ether (1.576, 77%). MS found: (M+H)⁺=667.

(503b) Following a procedure analogous to step (92d), the ester from (501d) (76.0 mg, 0.114 mmol) was reacted with hydroxylamine to give the hydroxamic acid (32.6 mg, 37%). MS found: (M+H)⁺=668.

Example 504 [1(R)-α-[3-Amino-3-(4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Starting with the hydroxamic acid from example 503, example 504 was prepared in a procedure analogous to example 117. MS found: (M+H)⁺=468.

Example 505 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide bis(Trifluoroacetate)

(504a) Following a procedure analogous to example 117, the lactam from (503a) (624 mg, 0.936 mmol) was reacted with TFA to give the piperidine tris(trifluoroacetate) (750 mg, 99%). MS found: (M+H)⁺=467.

(505b) Following a procedure analogous to (49a), the piperidine from (148a) (125 mg, 0.155 mmol) was reacted with methylsulfonyl chloride to give the monosulfonamide (67.0 mg, 80%). MS found: (M+Na)⁺=567.

(505c) Following a procedure analogous to step (92d), the crude ester from (505b) was reacted with hydroxylamine. The mixture was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid bis(trifluoroacetate) (45.0 mg, 52%). MS found: (M+H)⁺=546.

Example 506 [1(R)]-1-Acetyl-α-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and acetyl chloride, example 506 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=510.

Example 507 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-(2.2-dimethyl-1-oxopropyl)-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and trimethylacetyl chloride, example 507 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=552.

Example 508 [1(R)]-1,1-Dimethylethyl4-[1-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and di-t-butyl dicarbonate, example 508 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=568.

Example 509 [1(R)]-methyl4-[1-[3-amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidinecarboxylate bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and methyl chloroformate, example 509 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=526.

Example 510 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-methyl-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the piperidine from (505a) and formaldehyde, example 506 was prepared in an analogous series of reactions to (86a) and (92d). MS found: (M+H)⁺=482.

Example 511 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-dimethylcarbamyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and dimethylcarbamyl chloride, example 511 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=539.

Example 512 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-cyclopropanecarbonyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and cyclopropanecarbonyl chloride, example 512 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=536.

Example 513 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

(513a) Following a procedure analogous to (300f), the aldehyde from (300e) (8.00 g, 19.3 mmol) and D-Val-OMe were coupled to give the secondary amine as a crude material MS found: (M+H)⁺=529.

(513b) Following a procedure analogous to (300g), the crude amine from (513a) was converted to the lactam. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 25:75) provided the less polar isomer (4.60 g) and the more polar isomer (3.60 g). The total yield is 85% for two steps.

(513c) Following a procedure analogous to step (3a), the less polar lactam from (513b) (4.10 g, 8.27 mmol) was hydrogenolized to give the phenol (3.30, 98%). MS found: (M+Na)⁺=429.

(513d) Following a procedure analogous to step (6b), the phenol from (513c) (500 mg, 1.23 mmol) was reacted with 4-chloromethylquinoline hydrochloride to give the ether (575 mg, 85%). MS found: (M+Na)⁺=570.

(513e) Following a procedure analogous to step (92d), the ester from (513d) (575 mg, 1.05 mmol) was reacted with hydroxylamine to give the hydroxamic acid (380 mg, 66%). MS found: (M−H)⁻=547.

(513f) Following a procedure anlogous to example 117, the hydroxamic acid from (513e) (380 mg, 0.693 mmol) was reacted with trifluoroacetic acid. The material was purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid bis(trifluoroacetate) (268 mg, 57%). MS found: (M+H)⁺=449.

Example 514 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c) and 4-chloromethyl-2,6-dimethylpyridine hydrochloride, example 514 was prepared in an analogous series of reactions to (6b), (92d) and example 117. MS found: (M+H)⁺=427.

Example 515 [1(R)]-3-Amino-α-cyclohexyl-N-hydroxy-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the aldehyde from (300e) and D-cyclohexylglycine methyl ester hydrochloride, example 515 was prepared in an analogous series of reactions to example 513. MS found: (M+H)⁺=589.

Example 516 [1(R)]-3-amino-α-cyclohexyl-3-[4-[(2,6-dimethyl-4-pridinyl)methoxy]phenyl]-N-hydroxy-[2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the aldehyde from (300e) and D-cyclohexylglycine methyl ester hydrochloride, example 516 was prepared in an analogous series of reactions to example 513. MS found: (M+H)⁺=467.

Example 517 3-Amino-α-(1,1-dimethylethyl)-3-(4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(517a) Following a procedure analogous to (300f), the aldehyde from (300e) (8.40 g, 20.3 mmol) and D-t-Leu-OMe were coupled to give the secondary amine as a crude material. MS found: (M+H)⁺=543.

(517b) Following a procedure analogous to (300g), the crude amine from (517a) was converted to the lactam. Silica gel chromatography (ethyl acetate-hexane, 15:85 then 20:80) provided the less polar isomer (4.60 g, 45%). MS found: (M+H)⁺=511.

(517c) Following a procedure analogous to step (3a), the less polar lactam from (517b) (4.50 g, 8.80 mmol) was hydrogenolized to give the phenol (3.62 g, 98%). MS found: (M+Na)⁺=443.

(517d) Following a procedure analogous to step (6b), the phenol from (517c) (210 mg, 0.500 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine hydrochloride to give the ether (240 mg, 89%). MS found: (M+H)⁺=540.

(517e) The ester from (517d) (220 mg, 0.408 mmol) in concentrate HCl (5 mL) and HOAc (7.5 mL) was heated to 100° C. overnight and concentrated to give the crude carboxylic acid. MS found: (M−H)⁻=424.

(517f) The carboxylic acid from (517e), hydroxylamine hydrochloride (160 mg, 5.6 eq), NMM (0.5 mL), BOP (300 mg, 1.7 eq) in DMF (8 mL) were stirred at rt for 4 h. Following addition of sat NH4Cl (25 mL), the mixture was extracted with ethyl acetate several times. The extracts were concentrated and purified by reverse phase HPLC on a Dynamax C-18 semiprep column eluting an acetonitrile:water:TFA gradient, to give the hydroxamic acid bis(trifluoroacetate) (140 mg, 51% for 2 steps). MS found: (M+H)⁺=441.

Example 518 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-N-hydroxy-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c) and 4-chloromethylquinoline hydrochloride, example 518 was prepared in an analogus series of reactions to (6b), (517e) and (517f). MS found: (M−H)⁻=461.

Example 519 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-N-hydroxy-2-oxo-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c) and 4-chloromethyl-2-methylquinoline hydrochloride, example 519 was prepared in an analogous series of reactions to (6b), (517e) and (517f). MS found: (M+H)⁺=477.

Example 520 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-[(2-methyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c) and 4-chloromethyl-2-methylquinoline hydrochloride, example 520 was prepared in an analogous series of reactions to (6b), (92d) and example 117. MS found: (M+H)⁺=463.

Example 521 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-[2,6-dimethyl-4-quinolinyl)methoxy]phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c) and 4-chloromethyl-2,6-dimethylquinoline hydrochloride, example 521 was prepared in an analogous series of reactions to (6b), (92d) and example 117. MS found: (M+H)⁺=477.

Example 522 [1(R) 1-N-[4-[1-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-2-(hydroxyamino)-2-oxoethyl]-1-piperidine]-4-morpholinecarboxamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and 4-morpholinecarbonyl chloride, example 522 was prepared in an analogous series of reactions to (49a) and 92d). MS found: (M+H)⁺=581.

Example 523 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-(2-methyl-1-oxopropyl)-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and isobutyryl chloride, example 523 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=538.

Example 524 [1(R)]-3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-(4-methoxycyclohexyl)-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

(524a) Sodium carbonate (6.13 g, 2 eq) and (BOC)2O (6.30 g, 1 eq) were successively added to D-4-hydroxycyclohexylgrycine (5.00 g, 28.9 mmol, Ciba-Geigy, WO9722587, 1994) in water (120 mL) and dioxane (60 mL) at 0° C. The mixture was stirred at rt overnight and then adjusted to pH 5-6 with 6 N HCl. Following removal of dioxane, the mixture was diluted with water (150 mL), acidified to pH 2-3, saturated with solid NaCl, and extracted with ethyl acetate (3×250 mL). The combined extracts were dried (MgSO4), and concentrated to give the BOC-protected amino acid (7.80 g, 99%). MS found: (M−H)⁻=272.

(524b) A 2.0 M hexane solution of trimethylsilyl diazomethane (18.3 mL, 1.3 eq) was added to the acid from (524a) (7.70 g, 28.8 mmol) in methanol (50 mL) and benzene (200 mL). The mixture was stirred at rt for 30 min, then concentrated. Silica gel chromatography (ethyl acetate-hexane, 50:50) gave the ester (7.40 g, 91%). MS found: (M+Na)⁺=310.

(524c) The ester from (524b) (7.20 g, 25.2 mmol) was stirred in 4 N dioxane solution of hydrogen chloride (200 mL) for 30 min and then concentrated to give the amino ester hydrochloride (5.70 g, 100%). MS found: (M+H)⁺=188.

(524d) Following a procedure analogous to (300f,) the aldehyde from (300e) (2.00 g, 4.83 mmol) and the methyl ester hydrochloride from (525c) were coupled to give the secondary amine as a crude material. MS found: (M+H)⁺=585.

(524e) Following a procedure analogous to (300g), the crude amine from (525d) were cyclized to give the lactam as a crude material (2.71 g). MS found: (M+Na)⁺=575.

(524f) Proton sponge (1.16 g, 3 eq) and trimethyloxonium tetrafluoroborate (803 mg, 3 eq) were added to the crude material from (524d) (1.00 g) in dichloromethane (20 mL). After 4 h at rt, ethyl acetate (200 mL) was added. The mixture was washed with water (2×25 mL), brine (25 mL), dried (MgSO4) and concentrated. Silica gel chromatography (35:65 then 40:60 then 45:55) gave the desired methyl ether (628 mg, 62% for 3 steps). MS found: (M+Na)⁺=589.

(524g) Following a procedure analogous to step (3a), the lactam from (524f) (838 mg, 1.48 mmol) was hydrogenolized to give the phenol (643.2 mg, 91%). MS found: (M+Na)⁺=499.

(524h) Following a procedure analogous to step (6b), the phenol from (524g) (200 mg, 0.420 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine hydrochloride to give the ether (197.4 mg, 79%). MS found:. (M+Na)⁺=619.

(524i) Following a procedure analogous to step (92d), the ester from (524h) (185.4 mg, 0.311 mmol) was reacted with hydroxylamine to give the hydroxamic acid (top isomer: 67.3 g; bottom isomer: 60.1 mg). The total yield is 127.4 mg (69%). MS found: (M+H)⁺=597.

(524j) Following a procedure analogous to step (117), the; bottom isomer of the hydroxamic acid from (524i) (56.1 mg, 0.094 mmol) was reacted with TFA to give the deprotected hydroxamic acid (68.1 mg, 100%). MS found: (M+H)⁺=497.

Example 525 [1′(R)]-N-Hydroxy-1,2-dihydro-α-(1-methylethyl)-2,2′-dioxo-6-(phenylmethoxy)spiro[3H-indole-3,3′-pyrrolidine]-1′-acetamide

(525a) Cesium carbonate (8.86 g, 2 eq) was added to a solution of dimethyl [4-(benzyloxy)-2-nitrophenyl]malonate (4.87 g, 13.6 mmol; Warpehosski, et al. J. Med. Chem. 1988, 31, 590) and allyl bromide (3.53 mL, 3 eq) in DMSO at rt. After 1 h at this temperature, ether (800 mL) and sat ammonium chloride (100 mL) were added. The organic phase was separated, washed with water (3×50 mL), brine (50 mL), dried (MgSO4) and concentrated. Silica gel chromatography (ethyl acetate-hexane, 15:85 then 20:80) provided the allylated product (5.28 g, 97%). MS found: (M+H)⁺=400.

(525b) Following a procedure analogous to step (1c), the; olefin from (219a) (5.18 g, 13.0 mmol) was degraded by ozonolysis. Silica gel chromatography (ethyl acetate-hexane, 20:80 then 30:70 then 35:65 then 40:60) provided the aldehyde (4.96 g, 95%). MS found: (M+NH₄)⁺=419.

(525c) Following a procedure analogous to (300f), the aldehyde from (525b) (510 mg, 1.27 mmol) and D-valine methyl ester hydrochloride were coupled to give the secondary amine as a crude material.

(525d) Following a procedure analogous to (1d), the crude material from (525c) was treated with zinc in acetic acid at reflux. The crude spirolactam was purified by silica gel chromatography (ethyl acetate-hexane, 40:60 then 50:50): to give less polar isomer (180 mg) and more polar isomer (130 mg). The total yield for two steps is 310 mg (58%). MS found: (M−H)⁻=421.

(525e) Following a procedure analogous to step (92d), the ester from (525d) (25.5 mg, 0.060 mmol) was reacted with hydroxylamine to give the hydroxamic acid (15.2 mg, 60%) MS found: (M−H)⁻=422.

Example 526 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(phenylcarbonyl)-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and benzoyl chloride, example 526 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=572.

Example 527 [1(R)]-α-[3-Amino-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-1-(1-oxopropyl)-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the piperidine from (505a) and propionyl chloride, example 527 was prepared in an analogous series of reactions to (49a) and (92d). MS found: (M+H)⁺=524.

Example 528 [1(R)]-α-[3-Amino-2-oxo-3-[4-(2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-2-methylquinoline in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=546.

Example 529 [1(R)-α-[3-Amino-2-oxo-3-(4-(2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-2-methylquinoline in step (6b) and methanesulfonyl chloride in step (49a). MS found: (M+H)⁺=582.

Example 530 [1(R)]-α-[3-Amino-2-oxo-3-(4-(2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-(2,2-dimethyl-1-oxopropyl)-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-2-methylquinoline in step (6b) and pivolyl chloride in step (49a). MS found: (M+H)⁺=588.

Example 531 [1(R)]-α-[3-Amino-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethylquinoline in step (6b) and acetyl chloride in step (49a).; MS found: (M+H)⁺=532.

Example 532 [1(R)]-α-[3-Amino-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-1-(methylsulfonyl)-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethylquinoline in step (6b) and methanesulfonyl chloride in step (49a). MS found: (M+H)⁺=568.

Example 533 [1(R)]-α-[3-Amino-2-oxo-3-(4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide Trifluoroacetate

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 3,5-dimethoxybenzyl bromide in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=541.

Example 534 [1(R)]-α-[3-Amino-2-oxo-3-(4-[(5-methyl-3-nitrophenyl)methoxy]phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide Trifluoroacetate

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and.(92d), but using 5-methyl-3-nitrobenzyl bromide in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=540.

Example 535 [1(R)]-α-[3-Amino-2-oxo-3-[4-3,5-bis(trifluoromethyl)phenoxy]phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide Trifluoroacetate

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (61a), (117), (49a) and (92d), but using 3,5-bis(trifluoromethyl)benzene boronic acid in step (61a) and acetyl chloride in step (49a). MS found: (M+H)⁺=603.

Example 536 [1(R)]-α-[3-Amino-2-oxo-3-[4-[(3,5-dichlorophenyl)methoxy]phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide Trifluoroacetate

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 3,5-dichlorobenzyl bromide in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺549.

Example 537 [1(R)]-α-[3-Amino-2-oxo-3-[4-(6-fluoro-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-6-fluoro-2-methylquinoline in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=564.

Example 538 [1(R)]-α-[3-Amino-2-oxo-3-[4-(7-chloro-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-7-chloro-2-methylquinoline in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=580.

Example 539 [1(R)]-α-[3-Amino-2-oxo-3-[4-(6-chloro-2-methyl-4-quinolinylmethoxy)phenyl]1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-6-chloro-2-methylquinoline in step (6b) and acetyl chloride in step (49a). M found: (M+H)⁺=580.

Example 540 [1(R)]-α-[3-Amino-2-oxo-3-[4-(6-methoxy-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-6-methoxy-2-methylquinoline in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=576.

Example 541 [1(R)]-α-[3-Amino-2-oxo-3-[4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117) and (92d), but using 4-chloromethyl-2,7-dimethylquinoline in step (6b). MS found: (M+H)⁺=518.

Example 542 [1(R)]-α-[3-Amino-2-oxo-3-[4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-2,7-dimethylquinoline in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=560.

Example 543 [1(R)]-α-[3-Amino-2-oxo-3-[4-(2-methoxy-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117) and (92d), but using 4-bromomethyl-2-methoxyquinoline in step (6b). MS found: (M+H)⁺=520.

Example 544 [1(R)]-α-[3-Amino-2-oxo-3-[4-[(3,5-dimethoxyphenyl)methoxy]phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117) and (92d), but using 3,5-dimethoxybenzyl bromide in step (6b). MS found: (M+H)⁺=499.

Example 545 [1(R)]-α-[3-Amino-3-[4-[(2,6-diethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117) and (92d), but using 4-chloromethyl-2,6-diethylpyridine (prepared from 2,6-dichloro-4-hydroxymethylpyridine following the procedure of Tamao, et al Bull. Chem. Soc. Jpn. 1976, 49, 1958 and subsequent treatment with thionyl chloride) in step (6b). MS found: (M+H)⁺=496.

Example 546 [1(R)]-α-[3-Amino-3-[4-[(2,6-diethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-1-pyrrolidinyl]-1-acetyl-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound, was prepared in an analogous series of reactions to (6b), (117), (49a) and (92d), but using 4-chloromethyl-2,6-diethylpyridine in step (6b) and acetyl chloride in step (49a). MS found: (M+H)⁺=538.

Example 547 [1(R)]-α-[3-Amino-2-oxo-3-[4-(7-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidinyl]-N-hydroxy-4-piperidineacetamide tris(Trifluoroacetate)

Beginning with the phenol from (501c), the title compound was prepared in an analogous series of reactions to (6b), (117) and (92d), but using 4-chloromethyl-7-methylquinoline in step (6b). MS found: (M+H)⁺=504.

Example 548 [1(R)]-3-Amino-N-hydroxyy-α-(4-methoxycyclohexyl)-2-oxo-3-[4-(4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (524g), the title compound was prepared in an analogous series of reactions to (6b), (92d) and (117), but using 4-chloromethylquinoline in step (6b). MS found: (M+H)⁺=519.

Example 549 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-[4-[(2,6-dimethyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 4-chloromethyl-2,6-dimethylquinoline in step (517d). MS found: (M+H)⁺=491.

Example 550 [1(R)]-3-[4-[(2,6-Dimethyl-1-oxido-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-3-dimethyl-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(550a) Beginning with the phenol from (6a), the picolyl ether was prepared in an analogous reaction to (6b), but using 4-chloromethyl-2,6-dimethylpyridine. MS found: (M+H)⁺=397.

(550b) A mixture of the picolyl ether from (550a) (100 mg, 0.252 mmol), mCPBA (100 mg, 2 eq), and 40% aqueous HF (0.015 mL), DMF (2 mL) and methanol (0.56 mL) was stirred at rt for 2 h. The mixture was quenched with sat NaHSO3 (1 mL) and sat Na2CO3, and extracted with ethyl acetate. The organic extracts were washed with Na2CO3 (2×), brine (2×), dried (MgSO4) and concentrated to give the pyridine N-oxide (90 mg, 86%). MS found: (M+H)⁺=413.

(550c) Following procedure analogous to (92d), the material from (550b) was converted to the hydroxamic acid. MS found: (M+H)⁺=414.

Example 551 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-[4-[(7-chloro-2-methyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 7-chloro-4-chloromethyl-2-methylquinoline in step (517 d). MS found: (M+H)⁺=511.

Example 552 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-[4-[(6-fluoro-2-methyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 4-chloromethyl-6-fluoro-2-methylquinoline in step (517 d). MS found: (M+H)⁺=495.

Example 553 [1(R)]-[3-Amino-α-(1,1-dimethylethyl)-3-[4-[(6-chloro-2-methyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 6-chloro-4-chloromethyl-2-methylquinoline in step (517 d). MS found: (M+H)⁺=511.

Example 554 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-[4-[(6-methoxy-2-methyl-4-quinolinyl)methoxyphenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 4-chloromethyl-6-methoxy-2-methylquinoline in step (517d). MS found: (M+H)⁺=507.

Example 555 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-[4-[(2,7-dimethyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 4-chloromethyl-2,7-dimethylquinoline in step (517d). MS found: (M+H)⁺=491.

Example 556 [1(R)]-3-Amino-α-(1,1-dimethylethyl)-3-(4-[(7-methyl-4-quinolinyl)methoxy]phenyl]-N-hydroxy-2-oxo-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (517c), the title compound was prepared in an analogous series of reactions to (517d-f), but using 4-chloromethyl-7-methylquinoline in step (517d). MS found: (M+H)⁺=477.

Example 557 [1(R)]-3-Amino-α-cyclohexyl-N-hydroxy-2-oxo-3-[4-(2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the aldehyde from (300e), the title compound was prepared in an analogous series of reactions to (513a-f), but using D-cyclohexylglycine methyl ester hydrochloride in step (513a) and 4-chloromethyl-2-methylquinoline in step (513d). MS found: (M+H)⁺=503.

Example 558 [1(R)]-3-Amino-α-cyclohexyl-N-hydroxy-2-oxo-3-[4-(2,6-dimethyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the aldehyde from (300e), the title compound was prepared in an analogous series of reactions to (513a-f), but using D-cyclohexylglycine methyl ester hydrochloride in step (513a) and 4-chloromethyl-2,6-dimethylquinoline in step (513d). MS found: (M+H)⁺=517.

Example 559 [1(R)]-3-Amino-3-[4-[(5-methyl-3-nitrophenyl)methoxy]phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide Trifluoroacetate

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 5-methyl-3-nitrobenzyl bromide in step (513d). MS found: (M+H)⁺=457.

Example 560 [1(R)]-3-Amino-3-[4-[3,5-bis(trifluoromethyl)phenoxy]phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide Trifluoroacetate

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (61a) and (513e-f), but using 3,5-bis(trifluoromethyl)benzene boronic acid in step (61a). MS found: (M+H)⁺=518.

Example 561 [1(R)]-3-Amino-3-[4-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide Trifluoroacetate

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 3,5-bis(trifluoromethyl)benzyl bromide in step (513d). MS found: (M+H)⁺=534.

Example 562 [1(R)]-3-Amino-3-[4-(3,5-dibromophenoxy)phenyl]-N-hydroxy-α-(1-methylethyl)-2-oxo-1-pyrrolidineacetamide Trifluoroacetate

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (61a) and (513e-f), but using 3,5-dibromobenzeneboronic acid in step (61a). MS found: (M+H)⁺=523.

Example 563 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(6-fluoro-2-methyl-4-quinolinylmethyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 4-chloromethyl-6-fluoro-2-methylquinoline step (513d). MS found: (M+H)⁺=481.

Example 564 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(6-methoxy-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 4-chloromethyl-6-methoxy-2-methylquinoline in step (513d). MS found: (M+H)⁺=493.

Example 565 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(7-chloro-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 7-chloro-4-chloromethyl-2-methylquinoline in step (513d). MS found: (M+H)⁺=497.

Example 566 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(6-chloro-2-methyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 6-chloro-4-chloromethyl-2-methylquinoline in step (513d). MS found: (M+H)⁺=497.

Example 567 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(2-methoxy-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 4-bromomethyl-2-methoxyquinoline in step (513d). MS found: (M+H)⁺=479.

Example 568 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 4-chloromethyl-2,7-dimethylquinoline in step (513d). MS found: (M+H)⁺=477.

Example 569 [1(R)]-3-Amino-N-hydroxy-α-(1-methylethyl)-2-oxo-3-[4-[(2,6-diethyl-4-pyridinyl)methoxy]phenyl]-1-pyrrolidineacetamide bis(Trifluoroacetate)

Beginning with the phenol from (513c), the title compound was prepared in an analogous series of reactions to (513d-f), but using 4-chloromethyl-2,6-diethylpyridine in step (513d). MS found: (M+H)⁺=455.

Example 700 [1(R)]-N-Hydroxy-α,3-dimethyl-2-oxo-3-[3-(phenylmethoxy)phenyl]-1-pyrrolidineacetamide

(700a) To 0.061 grams of methyl ester, obtained in a manner analogous to examples 1a-d, in 4 mL of anhydrous methanol was added 0.116 grams of hydroxylamine hydrochloride and 0.135 grams of sodium methoxide. The reaction was stirred at ambient temperature overnight at which time it was quenched with acetic acid and the volatiles removed under reduced pressure. The resulting material was purified by C18 reverse phase HPLC affording the hydroxamic acid 700. LRMS found (M−H)⁻=367.

Example 701 [1(R)]-3-[3-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(701a) Following the procedures analogous to examples 1a-d, 3a, 6b and 700a the hydroxamic acid 701 was obtained. LRMS found (M+H)⁺=397, (M−H)⁻=395.

Example 702 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[3-[(3-methylphenyl)methoxy]phenyl]-2-oxo-1-pyrrolidineacetamide

(702a) Following the procedures analogous to examples 1a-d, 3a, 6b and 700a the hydroxamic acid 702 was obtained. LRMS found (M−H)⁻=381.

Example 703 [1(R)]-N-Hydroxy-α,3-dimethyl-3-[3-(1-methylethoxy)phenyl]-2-oxo-1-pyrrolidineacetamide

(703a) Following the procedures analogous to examples 1a-d, 3a, 6b and 700a the hydroxamic acid 703 was obtained. LRMS found (2M+Na)⁺=663.

Example 704 [1(R)]-3-[3-(Heptyloxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(704a) Following the procedures analogous to examples 1a-d, 3a, 6b and 700a the hydroxamic acid 704 was obtained. LRMS found (M−H)⁻=375.

Example 705 [1(R)]-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-1,3,4-thiadiazol-2-yl-1,3-pyrrolidineacetamide

(705a) To a stirred, cooled (−78+ C.) solution of 5 grams methyl ester 705 was added 1.2 eq. of lithium diisopropylamide over 10 minutes. After stirring for 1 hour at −78° C. 1.7 mL of allyl bromide was added over 5 minutes. The reaction was allowed to slowly warm to ambient temperature while stirring overnight. Volatiles were removed under reduced pressure and the resulting material was diluted with ethyl acetate and washed with 1N hydrochloric acid. The aqueous phase was extracted 2 additional times with ethyl acetate. The combined organic phases were washed with brine, saturated aqueous sodium bicarbonate, brine, dried over magmesium sulfate and the volatiles were removed under reduced pressure. The resulting material was chromatographed on silica gel eluting with 5% ethyl acetate/hexane affording 4.9 grams of 704a as a white solid. LRMS found (M+H)⁺=297.

(705b) To a stirred, cooled (−78° C.) solution of 5 grams (705a) was added 1.02 eq. of lithium diisopropylamide over 10 minutes. After stirring for 1 hour at −78° C. 2.55 mL of t-butyl bromoacetate was added over 5 minutes. The reaction was allowed to slowly warm to ambient temperature while stirring overnight. Volatiles were removed under reduced pressure and the resulting material was diluted with ethyl acetate and washed with 1N hydrochloric acid. The aqueous phase was extracted 3 additional times with ethyl acetate. The combined organic phases were washed with brine, saturated aqueous sodium bicarbonate, brine, dried over magmesium sulfate and the volatiles were removed under reduced pressure. The resulting material was chromatographed on silica gel eluting with 5% ethyl acetate/hexane affording 5 grams of 705b as a white solid. LRMS found (M+Na)⁺=433.

(705c) To 55 grams of methyl ester 705b in 600 mL of dimethyl sulfoxide, 400 mL of water and 1000 mL of methanol was added 55 grams of lithium hydroxide monohydrate. The reaction was stirred at 79° C. for 3 hours. The mixture was concentrated to about half original volume and poured into ice. The mixture was acidified with 1N hydrochloric acid and extracted 4 times with diethyl ether. The combined ether extracts were washed three times with water, twice with brine and dried over magnesium sulfate. The volatiles were removed under reduced pressure and the resulting material was recrystallized from acetone/hexane affording 45 grams of the acid 705c as a white solid. LRMS found (M+Na)⁺=419.

(705d) To 1.3 grams of acid 705c in 20 mL of N,N-dimethylformamide was added 1.44 mL of 4-methylmorpholine and 1.44 grams of O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate. After stirring 30 minutes 0.46 grams of D-alanine methyl ester hydrochloride was added. The reaction was stirred 18 hours at ambient temperature and for 45 minutes at 60° C. The volatiles were removed under reduced pressure and the resulting material was partitioned in ethyl acetate and washed with 1N hydrochloric acid saturated with sodium chloride. The aqueous phase was extracted another two times with ethyl acetate. The combined organic phases were washed with brine, saturated aqueous sodium bicarbonate, brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure. The resulting material was chromatographed on silica gel eluting with 25% ethyl acetate/hexane affording 1.6 grams of 705d. LRMS found (M+Na)⁺=504.

(705e) To a stirred, cooled (−78° C.) solution of 0.90 grams of 705d in 20 mL of dichloromethane was bubbled ozone until the mixture attained a blue color. Ozone was added for an additional 10 minutes followed by a 15 minute oxygen flush. To this material was added 0.54 grams of triphenylphosphine and the reaction was allowed to slowly warm to ambient temperature while stirring 48 hours. The volatiles were removed under reduced pressure and the resulting material was chromatographed on silica gel eluting with a gradient of 25% ethyl acetate/hexane to 50% ethyl acetate/hexane affording 0.620 grams of 705e as a viscous oil. LRMS found (M+Na)⁺=506.

(705f) To a stirred cooled (−20° C.: carbon tetrachloride/dry ice) solution of 14.1 grams of 705e in 500 mL of dichloromethane was added 23.3 mL of triethylsilane and 11.2 mL of triflouroacetic acid. The reaction was stirred 1 hour at 0° C. and 2 hours at room temperature. The reaction was made basic by the addition of saturated aqueous sodium. bicarbonate and partitioned with chloroform. The aqueous was extracted 3 more times with chloroform. The combined organic phases were washed with brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure affording 11.3 grams of 705f. LRMS found (M+Na)⁺=490.

(705g) To 3 grams of 705f in 20 mL of methanol was added 0.30 grams of 10% palladium on carbon. The reaction was stirred 3 hours under hydrogen (balloon). The catalyst was filtered through a 0.45 uM PTFE filter and the volatiles were removed under reduced pressure affording 2.4 grams of phenol 705g. LRMS found (M+Na)⁺=400.

(705h) To 1.2 grams of 705g in 20 mL of DMSO was added 1.54 grams of 3-bromomethyl 2,5-dichloropyridine and 2.32 grams of cesium carbonate. After stirring for two hours at ambient temperature the reaction was diluted with diethyl ether and washed with brine. The aqueous was extracted an additional three times with ether. All organics were combined and washed with saturated aqueous sodium bicarbonate, water, brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure. The resulting material was chromatographed on silica gel eluting with 2% methanol/chloroform affording 1.1 grams of 705h. LRMS found (M+H)⁺=481.

(705i) To 1.1 grams of 705h in 50 mL of dichloromethane was added 10 mL of trifluoroacetic acid. After stirring 3 hours the volatiles were removed under reduced pressure affording 1 gram of 705i. LRMS found (M+Na)⁺=503.

(705j) To 0.50 grams of 705 i in 20 mL of N,N-dimethylformamide was added 0.46 mL of 4-methylmorpholine, 0.315 grams of 2-amino-1,3,4-thiadiazole and 0.474 grams of O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate. After stirring 10 hours at room temperature the reaction was heated at 60° C. for 45 minutes. The volatiles were removed under reduced pressure and the resulting material was diluted with ethyl acetate and washed with 1N hydrochloric acid saturated with sodium chloride. The aqueous was extracted 3 times with ethyl acetate and all the organics were combined and extracted with brine, saturated aqueous sodium bicarbonate, brine, dried over magnesium sulfate, and the volatiles were removed under reduced pressure affording 0.60 grams of 705j. LRMS found (M−H)⁻=562.

(705k) To 0.55 grams of 705j in 20 mL of 1:1 tetrahydrofuran/water was added 0.12 grams of lithium hydroxide monohydrate. After stirring 3 hours at ambient temperature the reaction volume was reduced by half under reduced pressure, diluted with water and washed twice with diethyl ether. The ether phases were combined and extracted twice with water. All aqueous phases were combined, acidified with 1N hydrochloric acid and extracted 3 times with ethyl acetate. The combined ethyl acetate extracts were washed with water, brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure affording0.52 grams of 705k. LRMS found (M−H)⁻=548.

(705l) To 0.40 grams of 705k in 20 mL of N,N-dimethylformamide was added 0.8 mL of 4-methyl morpholine, 0.202 grams of hydroxylamine hydrochloride and 0.354 grams of benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium-hexafluorophosphate. After stirring overnight at ambient temperature the volatiles were removed under reduced pressure and the resulting material was separated on C18 reverse phase HPLC isolating 0.18 grams of faster isomer 705l. LRMS found (M−H)⁻=563.

Example 706 [1[(R)]-1,1-Dimethylethyl1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-3-pyrrolidineacetate

(706a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 706 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M−H)⁻=467, (M+H)⁺=469.

Example 707 [1(R)]-1-[2-(Hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-[4-(phenylmethoxy)phenyl]-3-pyrrolidineacetic Acid

(707a) To 0.015 grams of hydroxamic acid 706 in 3 mL of dichloromethane was added 0.5 mL of trifluoroacetic acid. After stirring one hour the volatiles were removed under reduced pressure affording 0.009 grams of 707. LRMS found (M+Na)⁺435, (M−H)⁻=411.

Example 708 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-N3-[2-(methylamino)-2-oxoethyl]-2-oxo-1,3-pyrrolidineacetamide

(708a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 708 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+Na)⁺=533.

Example 709 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide

(709a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 709 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M−H)⁻=521.

Example 710 [1(R)]-3-[4-[(3,5-Dimethylphenyl)methoxy]phenyl]-N-hydroxy-α-methyl-3-[2-(4-morpholinyl)-2-oxo-1-pyrrolidineacetamide

(710a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 710 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+Na)⁺=532.

Example 711 [1(R)]-3-[4-[(2,6-Dichloro-4-pryridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(711a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 711 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS, found (M+H)⁺=564.

Example 712 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-[2-(4-morpholinyl)ethyl]-1,3-pyrrolidineacetamide) bis(Trifluoroacetate)

(712a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 712 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=594.

Example 713 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide bis(Trifluoroacetate)

(713a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 713 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+Na)⁺=594.

Example 714 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide mono(Trifluoroacetate)

(714a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 714 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=524.

Example 715 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(3-pyridinylmethyl)-1,3-pyrrolidineacetamide mono(Trifluoroacetate)

(714a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 715 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+Na)⁺=594.

Example 716 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-(2-pyridinylmethyl)-1,3-pyrrolidineacetamide mono(Trifluoroacetate)

(716a) Following the 716 analogous to examples 705a-j and 700a the hydroxamic acid 706 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=572.

Example 717 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-2-oxo-N3-4-pyridinyl-1,3-pyrrolidineacetamide mono(Trifluoroacetate)

(717a) Following the procedures analogous to examples 705a-j and 700a the hydroxamic acid 717 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=558.

Example 718 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-N3-(3-methyl-5-isothiazolyl)-2-oxo-1,3-pyrrolidineacetamide

(718a) Following the procedures analogous to examples 705a-l the hydroxamic acid 718 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M−H)⁻=576.

Example 719 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N3-[5-(1,1-dimethylethyl)-1,3,4-thiadizol-2-yl]-N1-hydroxy-α1-methyl-2-oxo-1,3-pyrrolidineacetamide

(719a) Following the procedures analogous to examples 705a-l the hydroxamic acid 719 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS (M−H)⁻=619.

Example 720 [1(R)]-1,1-Dimethylethyl2-[[[3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrolidinyl]acetyl]amino]-4-thiazoleacetate

(720a) Following the procedures analogous to examples 705a-l the hydroxamic acid 720 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS (M−H)⁻=676.

Example 721 [1(R)]-2-[[[3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-1-[2-(hydroxyamino)-1-methyl-2-oxoethyl]-2-oxo-3-pyrrrolidinyl]acetyl]amino]-4-thiazoleacetic Acid

(721a) Following the procedures analogous to examples 705a-l and 707a the hydroxamic acid 721 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M−H)⁻=620.

Example 722 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-methyl-N3-4-(2-(methylamino)-2-oxoethyl]-2-thiazolyl]-2-oxo-1,3-pyrrolidineacetamide

(722a) Following the procedures analogous to examples 705a-j, 707a, 705j-l the hydroxamic acid 722 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+Na)⁺=657.

Example 723 [1(R)]-3-(1H-Benzimidazol-2-ylmethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-α-methyl-2-oxo-1-pyrrolidineacetamide

(723a) To 0.20 grams of acid obtained by procedures analogous to 705a-i in 5 mL of N,N-dimethylformamide was added 0.18 mL of 4-methyl morpholine, 0.135 grams of phenyldiamine, and 0.173 grams of O-(7-azabenzotriazol-1-yl)-1,1,3,3 tetramethyluronium hexafluorophosphate. After stirring for 12 hours at ambient temperature the volatiles were removed under reduced pressure and the resulting material was washed with brine and 1 mL of 10% aqueous citric acid. The aqueous was extracted twice with ethyl acetate and the combined organic phases were washed with brine, saturated aqueous sodium bicarbonate, brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure affording 723a. LRMS found (M+H)⁺=571.

(723b) To 0.20 grams of 723a in 40 mL of 1:1 tetrahydrofuran/acetic acid was heated to reflux for 1.5 hours. The volatiles were removed under reduced pressure and the resulting material was dissolved in ethyl acetate and washed with water. The aqueous phase was extracted twice with ethyl acetate and the combined organic phases were washed with water, saturated aqueous sodium bicarbonate, brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure affording 0.17 grams of 723b. LRMS found (M+H)⁺=553.

(723c) To 0.15 grams of 723b in 6 mL of 1:1 tetrahydrofuran/water was added 0.065 grams of lithium hydroxide monohydrate. After stirring for two hours at ambient temperature the volatiles were removed under reduced pressure and the resulting material was dissolved in ethyl acetate and washed 1N hydrochloric acid. The aqueous was extracted twice with ethyl acetate and the combined organic phases were washed with brine, dried over magnesium sulfate and the volatiles were removed under reduced pressure affording 0.11 grams of 723c. LRMS found (M+H)⁺=539.

(723d) Following the procedure analogous to 705l the hydroxamic acid 723d was obtained and isolated as the faster isomer by C18 reverse phase HPLC. LRMS found (M+H)⁺=554.

Example 724 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N-hydroxy-3-(3H-imidazo(4,5-c]pyridin-2-ylmethyl)-α-methyl-2-oxo-1-pyrrolidineacetamide

(724a) Following the procedures analogous to examples 723a-d the hydroxamic acid 724 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=555.

Example 725 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]N1-hydroxy-α1-methyl-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide

(725a) Following the procedures analogous to examples 705a-g, 61a, and 705i-l, the hydroxamic acid 725 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M−H)⁻=615.

Example 726 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]N1-hydroxy-α1-methyl-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(726a) Following the procedures analogous to examples 705a-g, 61a, and 705i-l, the hydroxamic acid 726 was obtained and isolated as the faster isomer by reverse phase HPLC. LRMS found (M+H)⁺=625.

Example 780 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(1-methylethyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide

(780a) A 1.0 M tetrahydrofuran solution of sodium bis(trimethylsilyl)amide (192.5 mL, 1.1 eq) was added over 30 min to methyl 4-benzyloxyphenylacetate (44.95 g, 175 mmol) in tetrahydrofuran (900 mL) at −78° C. After 1 h at −78° C., DMPU (52.9 mL, 2.5 eq) was added over 15 min. The cold bath was replaced with an ice-water bath, and 2-benzyloxyethyl iodide (50.45 g, 1.1 eq) in THF (40 mL) was added dropwise. After 2 h at 0° C., sat ammonium chloride (500 mL) was added. Following removal of THF in vacuo, the residue was diluted with water (250 mL) and extracted with 1:2 mixture of ether-hexane (3×500 mL). The combined extracts were washed with water (2×100 mL), brine (100 mL), dried (MgSO4) and concentrated. The residue was filtered through a silica gel pad and the filter cake rinsed with ethyl acetate-hexane (20:80) until free of product. The filtrate was concentrated and used in the next step without purification. MS found: (M+H)⁺=391.

(780b) Following a procedure analogous to (1a), the crude material from (780a) was reacted with allyl bromide. The crude material was used in the next step without purification. MS found: (M+H)⁺=431.

(780c) Following a procedure analogous to (1c), the crude material from (780b) was ozonolized. Silica gel chromatography (ethyl acetate-hexane, 15:85 then 20:80 then 25:75) gave the desired aldehyde (43.27 g, 57% for three steps). MS found: (M+H)⁺=433.

(780d) Following a procedure analogous to (1d), the aldehyde from (780c) (3.00 g, 6.94 mmol) and D-valine ethyl ester hydrochloride was condensed to give the lactam (2.50 g, 68%) as a 1:1 mixture of two isomers. MS found: (M+H)⁺=530.

(780e) Following a procedure analogous to step (3a), the lactam from (780d) (4.50 g, 8.51 mmol) was hydrogenolized to give the phenol (2.30 g, 77%). MS found: (M+H)⁺=350.

(780f) Following a procedure analogous to step (6b), the phenol from (780e) (975 mg, 2.79 mmol) was reacted with 4-chloromethyl-2,6-dimethylpyridine hydrochloride to give the picolyl ether (818 mg, 62%). MS found: (M+H)⁺=455.

(780a) Ruthenium chloride monohydrate (18 mg, 0.05eq) was added to a mixture of the picolyl ether from (780f) (790 mg, 1.69 mmol), sodium periodate (1.44 g, 4 eq), acetonitrile (2 mL), carbon tetrachloride (2 mL) and water (3.5 mL). After 5 h at rt, the mixture was extracted with chloroform (3×). The extracts were washed with brine, dried (MgSO4) and concentrated to give the crude carboxylic acid (710 mg). MS found: (M+H)⁺=469.

(780h) Following a procedure analogous to step (705j), the carboxylic acid from (780g) (218 mg, 0.452 mmol) was coupled with 4-picolylamine to give the amide (179 mg, 69%). MS found: (M+H)⁺=573.

(780i) Following a procedure analogous to step (92d), the ester from (780 h) was reacted with hydroxylamine to give the desired hydroxamic acid (40 mg, 23%). MS found: (M+H)⁺560.

Example 781 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(1-methylethyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide

Beginning with the phenol from (780e) and 4-bromomethyl-2,6-dichloropyridine, example 781 was prepared in an analogous series of reactions to (780f-i). MS found: (M+H)⁺=600.

Example 782 [1(R)]-(1-(Cyclohexylmethyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide

Beginning with the aldehyde from (780c) and D-cyclohexylmethylglycine methyl ester, example 782 was prepared in an analogous series of reactions to (780d-i). MS found: (M+H)⁺=614.

Example 783 [1(R)]-α1-(Cyclohexylmethyl)-3-[4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide

Beginning with the aldehyde from (780c) and D-cyclohexylmethylglycine methyl ester and using 4-bromomethyl-2,6-dichloropyridine in place of 4-chloromethyl-2,6-dimethylpyridine, example 783 was prepared in an analogous series of reactions to (780d-i). MS found: (M+H)⁺=654.

Example 784 [1(R)]-1,1-Dimethylethyl[5-[3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-2-oxo-3-[2-oxo-2-[(4-pyridinylmethyl)amino]ethyl]-1-pyrrolidinyl]-6-(hydroxyamino)-6-oxohexyl]carbamate

Following a sequence analogous to example 705, example 784 was prepared. MS found: (M+H)⁺=689.

Example 785 [1(R)]-α1-(4-Aminobutyl)-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide tris(Trifluoroacetate)

Example 785 was prepared from example 784 following a procedure similar to example 117. MS found: (M+2H)²⁺=590.

Example 800 [1(R)]-3-[3-(1H-Benzotriazol-1-ylmethoxy)phenyl]-N-hydroxy-α,3-dimethyl-2-oxo-1-pyrrolidineacetamide

(800a) To 0.090 grams of methyl ester, obtained in a manner analogous to examples 1a-d, in 1 mL of anhydrous methanol was added 0.153 grams of hydroxylamine hydrochloride and 0.18 grams of sodium methoxide. The reaction was stirred at room temperature overnight at which time it was quenched with hydrochloric acid and the volatiles were removed under reduced pressure. The resulting material was purified by reverse phase HPLC affording the hydroxamic acid 800. LRMS found (M−H)⁻=408.

Example 801 [1(R)]-N-Hydroxy-3,4,4-trimethyl-α-[3-methyl-2-oxo-3[4-(phenylmethoxy)phenyl]-1-pyrrolidinyl]-2,5-dioxo-1-imidazolidinepropanamide

(801a) Following the procedures analogous to examples 1a-d, 6b and 800a the hydroxamic acid 801 was obtained. LRMS found (M+H)⁺=509, (M−H)⁻=507 (M+Na)⁺=531.

Example 802 [1(R)]-1,1-Dimethylethyl1-[(hydroxyamino)carbonyl]-3-methylbutyl]-2-oxo-3-[4-(phenyl]-3-pyrrolidineacetate

(802a) Following the procedures analogous to examples 704a-f and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M−H)⁻=509, (M+H)⁺=511, (M+Na)⁺=533.

Example 803 [1(R)]-N1-Hydroxy-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N3-[2-(methylamino)-2-oxoethyl]-α-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide

(803a) Following the procedures analogous to examples 705a-j and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+Na)⁺=533, (M−H)⁻=551, (M+H)⁺=553.

Example 804 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-[2-(methylamino)-2-oxoethyl]-alpha1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide

(804a) Following the procedures analogous to examples 705a-j and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=595.

Example 805 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide

(804a) Following the procedures analogous to examples 705a-j and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=607, (M−H)⁻=605.

Example 806 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]-N1-hydroxy-N3-[2-(methylamino)-2-oxoethyl]-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide

(806a) Following the procedures analogous to examples 705a-g, 61a, 705i, 705j, and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=647, (M−H)⁻=645, (M+Na)⁺=669.

Example 807 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-(4-pyridinylmethyl)-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(807a) Following the procedures analogous to examples 705a-g, 61a, 705i, 705j, and 1e the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=667.

Example 808 [1(R)]-3-[4-[(2,6-Dichloro-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylproryl)-2-oxo-N3-phenyl-1,3-pyrrolidineacetamide

(808a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=600.

Example 809 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-methyl-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(809a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=497.

Example 810 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-[2-(1H-imidazol-4-yl)ethyl]-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide bis(Trifluoroacetate)

(810a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=577.

Example 811 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-[1-(phenylmethyl)-4-piperidinyl]-1,3-pyrrolidineacetamide bis(Trifluoroacetate)

(811a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=656.

Example 812 [1(R)]-N3-[2-(Dimethylamino)ethyl]-3-[4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-α1,-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide bis(Trifluoroacetate)

(812a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=554.

Example 813 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-(4-hydroxyphenyl)-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(813a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=575.

Example 814 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N3-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(814a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=566.

Example 815 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N3-hydroxy-3-(2-hydroxyethyl)-α1-(2-methylpropyl)-2-oxo-1-pyrrolidineacetamide Mono(trifluoroacetate)

(814a) Following the procedures analogous to examples 780 the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=470.

Example 816 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N3-(4,5-dimethyl-2-thiazolyl)-N1-hydroxy-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(816a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=594.

Example 817 [1(R)]-3-[4-[(2,6-Dimethyl-4-pyridinyl)methoxy]phenyl]-N1-hydroxy-N3-1H-indazol-5-yl-α1-(2-methylpropyl)-2-oxo-1,3-pyrrolidineacetamide Mono(trifluoroacetate)

(817a) Following the procedures analogous to examples 705a-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=599.

Example 818 [1(R)]-3-[4-[3,5-bis(Trifluoromethyl)phenoxy]phenyl]N1-hydroxy-α1-(2-methylpropyl)-2-oxo-N3-2-thiazolyl-1,3-pyrrolidineacetamide

(818a) Following the procedures analogous to examples 705a-g, 61a, and 705i-l the hydroxamic acid was obtained and isolated by reverse phase HPLC. LRMS found (M+H)⁺=659.

TABLE 1

Ex # R¹ R² R³ MS 1 Me Me 4-(phenylmethoxy)phenyl 367 2 Me Me 4-methoxyphenyl 291 3 Me Me 4-(1-isopropoxy)phenyl 319 4 Me Me 4-(t-butoxy)phenyl 333 5 Me Me 4-cyclohexyloxyphenyl 359 6 Me Me 4-[[4-(t-butyl)phenyl]methoxy]phenyl 423 7 Me Me 4-[(3-phenyl-2-propen-1-yl)oxy]phenyl 393 8 Me Me 4-[(3-methylphenyl)methoxy]phenyl 381 9 Me Me 4-[(3,5-dimethylphenyl)methoxy]phenyl 395 10 Me Me 4-allyloxyphenyl 317 11 Me Me 4-[(3-cyanophenyl)methoxy]phenyl 392 12 Me Me 4-[(2-nitrophenyl)methoxy]phenyl 412 13 Me Me 4-[(4-nitrophenyl)methoxy]phenyl 412 14 Me Me 4-[(3-nitrophenyl)methoxy]phenyl 412 15 Me Me 4-[(2-naphthalenyl)methoxy]phenyl 417 16 Me Me 4-hydroxyphenyl 277 17 Me Me 4-[(2-pyridinyl)methoxy]phenyl 368 18 Me Me 4-[(3-pyridinyl)methoxy]phenyl 368 19 Me Me 4-[(4-pyridinyl)methoxy]phenyl 368 20 Me Me 4-(i-Bu)phenyl 317 21 Me Me phenyl 261 22 Me Me phenyl 233 23 H H phenyl 247 24 H Me phenyl 247 25 Me H 4-methoxyphenyl 277 26 Me H cyclohexyl 267 27 Me Me 2-phenylethyl 289 28 Me Me 2-cyclohexylethyl 295 29 Me Me phenyl 337 30 see structure at bottom 287 31 Me Me 4-[(3,5-dibromophenyl)methoxy]phenyl 523 32 Me Me 4-[[3,5-bis(trifluoromethyl)phenyl]me- 503 thoxy]phenyl 33 Me Me 4-[(3,5-dichlorophenyl)methoxy]phenyl 435 34 Me Me 4-[(2-methyl-1-naphthalenyl)methoxy]phenyl 455 35 Me Me 4-[(3,5-dimethoxyphenyl)methoxy]phenyl 427 36 Me Me 4-[[4-chloro-2-(trifluoromethyl)-6-quino- 520 linyl)methoxy]phenyl 37 Me Me 4-[[4-(1,2,3-thiadiazol-4-yl)phenyl]me- 451 thoxy]phenyl 38 Me Me 4-([1,1′-biphenyl]-2-ylmethoxy)phenyl 443 39 Me Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 436 40 Me Me 4-(1H-benzotriazol-1-ylmethoxy)phenyl 408 41 Me Me 4-[(4,6-dimethyl-2-pyrimidinyl)me- 397 thoxy]phenyl 42 Me Me 4-(1,3-benzodioxol-5-ylmethoxy)phenyl 411 43 Me Me 4-[(2-chloro-6-ethoxy-4-pyridinyl)me- 446 thoxy]phenyl 44 Me Me 4-(4-quinolinylmethoxy)phenyl 420 45 Me Me 4-[(4,5-dimethyl-2-thiazolyl)methoxy]phenyl 402 46 Me Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 398 47 Me Me 4-[(3-methyl-5-nitrophenyl)methoxy]phenyl 426 48 Me Me 4-[(3-amino-5-methylphenyl)methoxy]phenyl 396 49 Me Me 4-[[3-(acetylamino)-5-methylphenyl]me- 438 thoxy]phenyl 50 Me Me 4-[[3-[[[[(t-butoxy)carbonyl]amino]acetyl] 553 amino]-5-methylphenyl]methoxy]phenyl 51 Me Me 4-[[3-[(aminoacetyl)amino]-5-methylphen- 455 yl]methoxy]phenyl 52 Me Me 4-[[3-[[[[[[(t-butoxy)carbonyl]amino] 634 acetyl]amino]acetyl]amino]-5-methyl- phenyl]methoxy]phenyl 53 Me Me 4-[[3-[[[(aminoacetyl)amino]acetyl]amino]- 512 5-methylphenyl]methoxy]phenyl 54 Me Me 4-[[3-[[(4-morpholinyl)carbonyl]amino]-5- 509 methylphenyl]methoxy]phenyl 55 see structure at bottom 479 56 Me Me [1,1′-biphenyl]-4-yl 339 57 Me Me 2′-methyl[1,1′-biphenyl]-4-yl 353 58 Me Me 4′-methyl[1,1′-biphenyl)-4-yl 353 59 Me Me 3′,4′-dimethoxy[1,1′-biphenyl)-4-yl 397 60 Me Me 2′-(trifluoromethyl)[1,1′-biphenyl)-4-yl 405 61 Me Me 4-(4-methylphenoxy)phenyl 367 62 Me Me 4-phenoxyphenyl 353 63 Me Me 4-(2-methylphenoxy)phenyl 367 64 Me Me 4-(3,5-dichlorophenoxy)phenyl 421 65 Me Me 4-(3,4-dimethoxyphenoxy)phenyl 413 66 Me Me 4-(1,3-benzodioxol-5-yloxy)phenyl 397 67 Me Me 4-[3-(i-Pr)phenoxy]phenyl 395 68 Me Me 4-(3-methoxyphenoxy)phenyl 383 69 Me Me 4-(3-thienyloxy)phenyl 359 70 Me Me 4-(3,4,5-trimethoxyphenoxy)phenyl 443 71 Me Me 4-[3,5-bis(trifluoromethyl)phenoxy]phenyl 491 72 Me Me 4-(1-naphthalenyloxy)phenyl 405 73 Me Me 4-[3-[(hydroxyimino)methyl]phenoxy]phenyl 398 74 Me Me 4-[4-[1-(hydroxyimino)ethyl]phenoxy]phenyl 410 75 Me Me 4-[(1,1′-biphenyl]-4-yloxy]phenyl 431 76 Me Me 4-(3,5-dibromophenoxy)phenyl 510 77 Me Me 4-[3-(acetylamino)phenoxy]phenyl 412 78 Me Me 4-(4-nitrophenoxy)phenyl 398 79 Me Me 4-methylphenyl 275 80 Me Me 4-[[(2,6-dimethyl-4-pyridinyl)oxy]me- 398 thyl]phenyl 81 Me Me 4-[(4-quinolinyloxy)methyl]phenyl 420 82 Me Me 4-nitrophenyl 306 83 Me Me 4-[(phenylcarbonyl)amino]phenyl 380 84 Me Me 4-[(phenylsulfonyl)amino]phenyl 440 85 Me Me 4-[[(phenylamino)carbonyl]amino]phenyl 419 86 Me Me 4-[(1-naphthalenyl-methyl)amino]phenyl 440 87 Me Me 4-[(4-quinolinyl-methyl)amino]phenyl 419 88 Me Me 4-[[(3,5-dimethoxyphenyl)methyl]a- 426 mino]phenyl 89 H Me 4-[(3,5-dimethylphenyl)methoxy]phenyl 405 90 H Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 424 91 H Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 384 92 i-Pr Me 4-(4-quinolinylmethoxy)phenyl 446 93 i-Pr Me 4-(phenylmethoxy)phenyl 395 94 i-Pr Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 426 95 i-Bu Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 440 96 i-Bu Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 479 97 i-Bu Me 4-[[3,5-bis(trifluoromethyl)phenyl]me- 454 thoxy]phenyl 98 i-Bu Me 4-[(3,5-dichlorophenyl)methoxy]phenyl 479 99 i-Bu Me 3-(phenylmethoxy)propyl 375 101 i-Bu Me 2-methyl-4-(phenylmethoxy)phenyl 423 102 i-Bu Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]-2- 492 methylphenyl 103 i-Bu Me 2-methyl-4-(2-naphthalenylmethoxy]phenyl 475 104 i-Bu Me 2-methyl-4-(4-pyridinylmethoxy]phenyl 426 105 i-Bu Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy)-2- 454 methylphenyl 106 CH₃SCH₂CH₂ Me 4-(phenylmethoxy)phenyl 427 107 see structure at bottom 492 108 CH₃SO₂—CH₂CH₂ Me 4-[3,5-bis(trifluoromethyl)phenoxy]phenyl 581 109 CH₃SO₂—CH₂CH₂ Me 4-(3,5-dibromophenoxy)phenyl 603 110 CH₃SO₂—CH₂CH₂ Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 528 111 CH₃SO₂—CH₂CH₂ Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 490 112 CH₃SO₂—CH₂CH₂ Me 4-(4-quinolinylmethoxy)phenyl 512 113 see structure at bottom 379 114 (4-HO-phenyl)CH₂ Me 4-(phenylmethoxy]phenyl 395 115 HOCH₂CH₂ Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 466 116 4-[(CH₃)₃CO—C(O)NH₂]butyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 593 117 4-aminobutyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 495 118 4-(acetyl-amino)butyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 535 119 4-[3-pyridinyl-C(O)NH]butyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 600 120 4-[4-morpholinylC(O)NH]butyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 630 121 4-[CH₃SO₂-amino]butyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 595 122 4-(acetyl-amino)butyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 497 123 4-[(CH₃)₃CO—C(O)NH]butyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 555 124 4-aminobutyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 455 125 4-[H₂NCH₂C(O)—NH]butyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 512 126 4-(acetyl-amino)butyl Me 4-[[3,5-bis(trifluoromethyl)phenyl] 626 methoxy]phenyl 127 4-[(CH₃)₃CO—C(O)NH]butyl Me 4-(3,5-dibromophenoxy)phenyl =668 128 4-aminobutyl Me 4-(3,5-dibromophenoxy)phenyl 570 129 2-[(CH₃)₃CO—C(O)NH]ethyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 565 130 2-aminoethyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 467 131 2-(acetyl-amino)ethyl Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 508 132 2-[(CH₃)₃CO—C(O)NH]ethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 527 133 2-aminoethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 427 134 2-[3-pyridinyl-C(O)NH]ethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 523 135 2-[4-morpholinylC(O)NH]ethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 540 136 2-[(CH₃)₃CO—C(O)NHCH₂—C(O)NH]eth- Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 584 yl 137 2-[H₂NCH₂C(O)—NH]ethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 484 138 2-[(CH₃)₃CO—C(O)NHCH₂—C(O)NH]eth- Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 641 yl 139 2-[H₂NCH₂C(O)—NHCH₂C(O)—NH]ethyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 541 140 phenyl-CH₂OCH₂ Me 4-(phenylmethoxy)phenyl 473 141 HOCH₂ Me 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 437 142 1-[(CH₃)₃CO—C(O)]-4-piperidinyl Me 4-(4-quinolinylmethoxy)phenyl 589 143 4-piperidinyl Me 4-(4-quinolinylmethoxy)phenyl 489 144 1-(CH₃SO₂)-4-piperidinyl Me 4-(4-quinolinylmethoxy)phenyl 567 145 1-[(2-furanyl)C(O)]-4-piperidinyl Me 4-(4-quinolinylmethoxy)phenyl 583 146 1-(CH₃)₃CO—C(O)]-4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 567 147 4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 467 148 1-(CH₃C(O))-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 525 149 1-(CH₃SO₂)-4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 545 150 1-acetyl-4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 509 151 1-(2,2-dimethyl-1-oxopropyl)-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 551 152 1-methyl-4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 481 153 1-(i-Pr)-4-piperidinyl Me 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 510 300 i-Bu amino 4-(2-quinolinylmethoxy]phenyl 463 301 Me amino 4-[(3,5-dimethylphenyl)methoxy]phenyl 398 302 Me EtNHC(O)NH 4-[(3,5-dimethylphenyl)methoxy]phenyl 491 303 Me CH₃SO₂NH 4-[(3,5-dimethylphenyl)methoxy]phenyl 498 304 Me [(3-pyridinyl)acetyl]NH 4-[(3,5-dimethylphenyl)methoxy]phenyl 517 305 Me 4-pyridinyl-C(O)NH 4-[(3,5-dimethylphenyl)methoxy]phenyl 503 306 Me amino 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 437 307 Me 4-pyridinyl-C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 544 308 Me EtNHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 532 309 Me (CH₃)₃CO—C(O)NHCH₂—C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 618 310 Me H₂NCH₂—C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 496 311 Me (3-pyridinyl)CH₂—C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 558 312 Me phenylCH₂NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 594 313 Me [[(2,4-dimethoxy-phenyl)NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 640 314 Me phenyl-NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 580 315 Me (CH₃)₃CO—C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 561 316 Me (2-(4-morpholinyl)ethyl]NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 595 317 Me (CH₃)₃CO—C(O)NHCH₂C(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 618 318 Me (2-thiazolylNHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 565 319 Me (4-pyridinylNHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 581 320 Me (3-HO-phenyl)NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 596 321 Me (2,3-dihydro-2-oxo-1H-benzimidazo 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 636 1-5-yl)NHC(O)NH 322 CH₃SO₂CH₂CH₂ amino 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 532 323 CH₃SO₂CH₂CH₂ amino 4-[(3,5-dimethylphenyl)methoxy]phenyl 491 324 CH₃SO₂CH₂CH₂ [(2-thiazolyl-NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 657 325 CH₃SO₂CH₂CH₂ [(2-thiazolylNHC(O)NH 4-[(3,5-dimethylphenyl)methoxy]phenyl 617 326 4-[(2-propenyl)OC(O)NH]butyl amino 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 580 327 4-[(2-propenyl)OC(O)NH]butyl amino 4-[(2,6-dimethyl-4-pyridinyl)me- 562 thoxyl]phenyl 328 i-Bu amino 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 481 329 i-Bu [(2-thiazolylNHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 629 330 i-Bu [(2-thiazolylNHC(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 567 331 i-Bu [(2-pyridinylNHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 623 332 i-Bu CF₃CH₂C(O)—NHC(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 537 333 i-Bu [(2-pyridinylNHC(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 561 334 i-Bu phenylSO₂—NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 686 335 i-Bu phenylSO₂—NHC(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 624 336 i-Bu [[(3-Me-5-isothiazol-yl)NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 621 337 i-Bu 1H-benzimidazo 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 640 1-2-ylNHC(O)NH 338 i-Bu 1H-benzimidazo 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 600 1-2-ylNHC(O)NH 339 i-Bu phenylNH—C(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 560 340 i-Bu phenyl-NHC(O)NH 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 622 341 i-Bu (CH₃)₃N⁺ (phenylmethoxy)phenyl 454 342 i-Bu amino 4-(4-quinolinylmethoxy)phenyl 446 343 i-Bu amino 4-(2-oxo-2-phenylethoxy)phenyl 455 344 i-Bu amino 4-[(3,5-dimethyl-4-isoxazolyl)me- 431 thoxy]phenyl 345 i-Bu amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 441 346 i-Bu amino 4-[2-(2-benzothiazolylamino)-2-oxo- 512 ethoxy]phenyl 347 i-Bu amino 4-[(2-methoxy-4-quinolinyl)methoxy]phenyl 476 348 i-Bu amino 4-[(2-phenyl-4-quinolinyl)methoxy]phenyl 539 349 i-Bu amino 4-[(2,6-dimethyl-4-quinolinyl)me- 491 thoxy]phenyl 350 i-Bu amino 4-[(2-chloro-4-quinolinyl)methoxy]phenyl 497 351 i-Bu amino 4-[2-(2,5-dimethoxyphenyl)-2-(hydroxy- 515 imino)ethoxy]phenyl 352 i-Bu amino 4-[(2-methylimidazo[1,2-a]pyri- 466 din-3-yl)methoxy]phenyl 353 i-Bu amino 4-[[1,4-dimethyl-2-(methylthio)-1H-imi- 476 dazol-5-yl]methoxy]phenyl 354 i-Bu amino 4-[[1,5-dimethyl-2-(methylthio)-1H-imida- 476 zol-4-yl]methoxy]phenyl 355 i-Bu amino 4-[(2,4-dimethyl-5-thiazolyl)methoxy]phenyl 447 356 i-Bu amino 4-[(2-methyl-4-quinolinyl)methoxy]phenyl 477 357 CH₃SO₂CH_(2CH) ₂ amino 4-[(2-chloro-4-quinolinyl)methoxy]phenyl 547 358 CH₃SO₂CH₂CH₂ amino 4-[(2-methyl-4-quinolinyl)methoxy]phenyl 527 359 CH₃SO₂CH₂CH₂ amino 4-[(3,5-dimethoxy-phenyl)methoxy]phenyl 522 360 CH₃SO₂CH₂CH₂ amino 4-[(2-methoxy-4-quinolinyl)methoxyl phenyl 526 361 i-Bu amino 4-[(3,5-dimethoxyphenyl)methoxy]phenyl 455 362 i-Bu amino 4-[(2-CH₃O-5-nitro-phenyl)methoxy]phenyl 470 363 i-Bu amino 4-[(5-quinolinyl)methoxy]phenyl 446 364 2-(CH₃SO₂)-ethyl amino 4-[(2-CH₃O-5-nitro-phenyl)methoxy]phenyl 520 365 2-(CH₃SO₂)-ethyl amino 4-[(2-nitro-4,5-dimethoxy-phenyl)me- 567 thoxy]phenyl 366 2-(CH₃SO₂)-ethyl amino 4-[(2-phenyl-4-quinolinyl)methoxy]phenyl 589 367 2-(CH₃SO₂)-ethyl amino 4-[(3,5-dimethyl-4-isoxazolyl)me- 481 thoxy]phenyl 368 (4-HO-phenyl)-methyl amino 4-[(phenyl)methoxy]phenyl 462 369 (4-CH₃O-phenyl)-methyl amino 4-[(2-methyl-4-quinolinyl)methoxy]phenyl 541 370 (4-CH₃O-phenyl)-methyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 505 371 (4-CH₃O-phenyl)-methyl amino 4-[(phenyl)methoxy]phenyl 476 450 i-Bu aminomethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 455 451 i-Bu 2-thiazolylNHC(O)NHCH₂ 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 581 452 Me aminomethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 453 453 Me 2-thiazolylNHC(O)NHCH₂ 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 579 454 see structure at bottom 398 455 Me HOCH₂ 4-[(3,5-dimethylphenyl)methoxy]phenyl 435 456 Me CH₃CH₂NH—C(O)OCH₂ 4-[(3,5-dimethylphenyl)methoxy]phenyl 506 457 Me HOCH₂ 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 476 458 see structure at bottom 381 459 Me Me 5-[(3,5-dimethylphenoxy)methyl]-2-thienyl 425 460 see structure at bottom 460 461 Me Me [4-(phenylmethoxy)phenyl]methyl 405 462 i-Bu CH₃NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 455 463 i-Bu CH₃NH 4-[(2-methyl-4-quinolinyl)methoxy]phenyl 491 464 see structure at bottom 405 501 4-piperidinyl amino 4-(4-quinolinylmethoxy)phenyl 490 502 4-piperidinyl amino 4-[(2,6-chloro-4-pyridinyl)methoxy]phenyl 508 503 1-[(CH₃)₃CO—C(O)]-4-piperidinyl (CH₃)₃CO—C(O)NH 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 668 504 4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 468 505 1-(CH₃SO₂)-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 546 506 1-acetyl-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 510 507 1-(2,2-dimethyl-1-oxopropyl)-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 552 508 1-[(CH₃)₃CO—C(O)]-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 568 509 1-(CH₃OC(O))-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 526 510 1-methyl-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 482 511 1-dimethyl-carbamyl-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 539 512 1-cycPr-C(O)-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 536 513 i-Pr amino 4-(4-quinolinylmethoxy)phenyl 449 514 i-Pr amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 427 515 cyclohexyl amino 4-(4-quinolinylmethoxy)phenyl 589 516 cyclohexyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 467 517 t-Bu amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 441 518 t-Bu amino 4-(4-quinolinylmethoxy)phenyl 461 519 t-Bu amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 477 520 i-Pr amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 463 521 i-Pr amino 4-(2,6-dimethyl-4-quinolinylmethoxy)phenyl 477 522 1-(4-morpholino-C(O))-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 581 523 1-(2-methyl-1-oxopropyl)-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 538 524 4-CH₃O-cycHex amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 497 525 see structure at bottom 422 526 1-(phenyl-C(O))-4-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 572 527 1-(1-oxopropyl)-piperidinyl amino 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 524 528 1-acetyl-4-piperidinyl amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 546 529 1-(CH₃SO₂)-4-piperidinyl amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 582 530 1-(2,2-di-CH₃-1-oxopropyl)-piperidinyl amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 588 531 1-acetyl-4-piperidinyl amino 4-(4-quinolinylmethoxy)phenyl 532 532 1-(CH₃SO₂)-piperidinyl amino 4-(4-quinolinylmethoxy)phenyl 568 533 1-acetyl-4-piperidinyl amino 4-[(3,5-dimethoxyphenyl)methoxy]phenyl 541 534 1-acetyl-4-piperidinyl amino 4-[(5-methyl-3-nitrophenyl)methoxy]phenyl 540 535 1-acetyl-4-piperidinyl amino 4-[3,5-bis(trifluoromethyl)phenoxy]phenyl 603 536 1-acetyl-4-piperidinyl amino 4-[(3,5-dichlorophenyl)methoxy]phenyl 549 537 1-acetyl-4-piperidinyl amino 4-(6-fluoro-2-methyl-4-quinolinylme- 564 thoxy)phenyl 538 1-acetyl-4-piperidinyl amino 4-(7-chloro-2-methyl-4-quinolinylme- 580 thoxy)phenyl 539 1-acetyl-4-piperidinyl amino 4-(6-chloro-2-methyl-4-quinolinylme- 580 thoxy)phenyl 540 1-acetyl-4-piperidinyl amino 4-(6-methoxy-2-methyl-4-quinolinylme- 576 thoxy)phenyl 541 4-piperidinyl amino 4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl 518 542 1-acetyl-4-piperidinyl amino 4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl 560 543 4-piperidinyl amino 4-(2-CH₃O-4-quinolinylmethoxy)phenyl 520 544 4-piperidinyl amino 4-[(3,5-dimethoxy-phenyl)methoxy]phenyl 499 545 4-piperidinyl amino 4-[(2,6-diethyl-4-pyridinyl)methoxy]phenyl 496 546 1-acetyl-4-piperidinyl amino 4-[(2,6-diethyl-4-pyridinyl)methoxyl]phenyl 538 547 4-piperidinyl amino 4-(7-methyl-4-quinolinylmethoxy)phenyl 504 548 4-methoxy-cycHex amino 4-(4-quinolinylmethoxy)phenyl 519 549 t-Bu amino 4-(2,6-dimethyl-4-quinolinylmethoxy)phenyl 491 550 methyl methyl 4-[(2,6-dimethyl-1-oxido-4-pyridinyl)me- 414 thoxy)phenyl 551 t-Bu amino 4-(7-chloro-2-methyl-4-quinolinylme- 511 thoxy)phenyl 552 t-Bu amino 4-(6-fluoro-2-methyl-4-quinolinylme- 495 thoxy)phenyl 553 t-Bu amino 4-(6-chloro-2-methyl-4-quinolinylme- 511 thoxy)phenyl 554 t-Bu amino 4-(6-methoxy-2-methyl-4-quinolinylme- 507 thoxy)phenyl 555 t-Bu amino 4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl 491 556 t-Bu amino 4-(7-methyl-4-quinolinylmethoxy)phenyl 477 557 cycHex amino 4-(2-methyl-4-quinolinylmethoxy)phenyl 503 558 cycHex amino 4-(2,6-dimethyl-4-quinolinylmethoxy)phenyl 517 559 i-Pr amino 4-[(5-methyl-3-nitrophenyl)methoxy]phenyl 457 560 i-Pr amino 4-[3,5-bis(trifluoromethyl)phenoxy]phenyl 518 561 i-Pr amino 4-[[3,5-bis(trifluoromethyl)phenyl]me- 534 thoxy]phenyl 562 i-Pr amino 4-(3,5-dibromophenoxy)phenyl 523 563 i-Pr amino 4-(6-fluoro-2-methyl-4-quinolinylme- 481 thoxy]phenyl 564 i-Pr amino 4-(6-CH₃O-2-methyl-4-quinolinylme- 493 thoxy)phenyl 565 i-Pr amino 4-(7-chloro-2-methyl-4-quinolinylme- 497 thoxy]phenyl 566 i-Pr amino 4-(6-chloro-2-methyl-4-quinolinylme- 497 thoxy]phenyl 567 i-Pr amino 4-(2-CH₃O-4-quinolinylmethoxy)phenyl 479 568 i-Pr amino 4-(2,7-dimethyl-4-quinolinylmethoxy)phenyl 477 569 i-Pr amino 4-[(2,6-diethyl-4-pyridinyl)methoxy]phenyl 455 700 Me Me 3-(phenylmethoxy)phenyl 367 701 Me Me 3-[(3,5-dimethylphenyl)methoxy]phenyl 395 702 Me Me 3-[(3-methylphenyl)methoxy]phenyl 381 703 Me Me 3-(1-methylethoxy)phenyl 663 704 Me Me 3-heptyloxyphenyl 375 705 Me 2-oxo-2-[(1,3,4-thiadiazol-2-yl)NH]ethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 563 706 Me 2-(CH₃)₃CO)-2-oxoethyl 4-(phenylmethoxy)phenyl 467 707 Me 2-HO-2-oxoethyl 4-(phenylmethoxy)phenyl 411 708 Me 2-[2-(CH₃NH)-2-oxoethyl)NH]-2-oxoethyl 4-[(3,5-dimethylphenyl)methoxy]phenyl 533 709 Me 2-oxo-2-[(2-thiadiazol)NH]ethyl 4-[(3,5-dimethylphenyl)methoxy]phenyl 521 710 Me 2-(4-morpholin-yl)-2-oxoethyl 4-[(3,5-dimethylphenyl)methoxy]phenyl 532 711 Me 2-oxo-2-[(2-thiazolyl)NH]ethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 564 712 Me 2-[2-[(4-morpholin-yl)ethyl]NH]-2-oxoethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 594 713 Me 2-oxo-2-[(4-pyridinyl)CH₂NH]ethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 594 714 Me 2-oxo-2-[(2-thiazolyl)NH]ethyl 4-[(3,5-dimethylphenyl)methoxy]phenyl 524 715 Me 2-oxo-2-[(3-pyridinyl)CH₂NH]ethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 594 716 Me 2-oxo-2-[[2-pyridinyl)CH₂NH]ethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 572 717 Me 2-oxo-2-[(4-pyridinyl)NH]ethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 558 718 Me 2-[(3-Me-5-isothiazol-yl)NH]-2-oxoethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 576 719 Me 2-[[5-(t-Bu)-1,3,4-thiadiazol- 4-[(3,5-dichlorophenyl)methoxy]phenyl 619 2-yl]NH]-2-oxoethyl 720 Me 2-[[4-[2-(t-Butoxy-ethoxy)-2-oxoethyl)- 4-[(3,5-dichlorophenyl)methoxy]phenyl 676 2-thiazol-yl]NH]-2-oxoethyl 721 Me 2-[[4-(2-HO-2-oxoethyl)-2-thiazol- 4-[(3,5-dichlorophenyl)methoxy]phenyl 620 yl]NH]-2-oxoethyl 722 Me 2-[[4-(2-CH₃NH-2-oxoethyl)-2-thiazol- 4-[(3,5-dichlorophenyl)methoxy]phenyl 657 yl]NH]-2-oxoethyl 723 Me 1H-benzimidazo 4-[(3,5-dichlorophenyl)methoxy]phenyl 554 1-2-ylmethyl 724 Me 3H-imidazo[4,5-c]pyridin-2-ylmethyl 4-[(3,5-dichlorophenyl)methoxy]phenyl 555 725 Me 2-oxo-2-(2-thiazol-yl)NH-ethyl 4-[3,5-bis(trifluoromethyl)phenyloxy]phenyl 615 726 Me 2-oxo-2-[(4-pyridin-yl)CH₂NH-ethyl 4-[3,5-bis(trifluoromethyl)phenyloxy]phenyl 625 780 i-Pr 2-oxo-2-(4-pyridin-ylCH₂)NH-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 560 781 i-Pr 2-oxo-2-(4-pyridin-ylCH₃)NH-ethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 600 782 cyclohexylmethyl 2-oxo-2-(4-pyridinylCH₂)NH-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 614 783 cyclohexylmethyl 2-oxo-2-(4-pyridinylCH₂)NH-ethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 654 784 4-[(CH₃)₃CO—C(O)NH]butyl 2-oxo-2-(4-pyridinylCH₂)NH-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 689 785 4-aminobutyl 2-oxo-2-(4-pyridinylCH₃)NH-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 590 800 methyl methyl 3-(1H-benzotriazol-1-ylmethoxy)phenyl 408 801 (3,4,4-tri-Me-2,5-dioxo-1-imidazolinyl)CH₂ methyl 4-(phenylmethoxy)phenyl 509 802 i-Bu 2-(t-butoxy)-2-oxoethyl 4-(phenylmethoxy)phenyl 509 803 i-Bu 2-[2-(CH₃NH)-2-oxoethyl]NH]-2-oxoethyl 4-[(3,5-dimethylphenyl)methoxy]phenyl 533 804 i-Bu 2-[2-(CH₃NH)-2-oxoethyl]NH]-2-oxoethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 595 805 i-Bu 2-oxo-2-(2-thiazol-yl)NH-ethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 607 806 i-Bu 2-[2-(CH₃NH)-2-oxoethyl]NH]-2-oxoethyl 4-[3,5-bis(trifluoromethyl)phenyloxy]phenyl 647 807 i-Bu 2-oxo-2-[(4-pyridinyl)CH₂]NH-ethyl 4-[3,5-bis(trifluoromethyl)phenyloxy]phenyl 667 808 i-Bu 2-oxo-2-(phenyl-NH)ethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 600 809 i-Bu 2-oxo-2-(CH₃-NH)ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 497 810 i-Bu 2-[2-(1H-imidazol-4-yl)ethyl]NH-2-oxoethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 577 811 i-Bu 2-2-[1-(phenylCH₂)-4-piperidinylNH]-2- 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 656 oxoethyl 812 i-Bu 2-[2-(dimethylamino)oxoethyl 4-[(2,6-dichloro-4-pyridinyl)methoxy]phenyl 554 813 i-Bu 2-[(4-HO-phenyl)NH]-2-oxoethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 575 814 i-Bu 2-oxo-2-(2-thiazol-yl)NH-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 566 815 i-Bu 2-HO-ethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 470 816 i-Bu 2-[(4,5-dimethyl-2-thiazol-yl)NH]-2- 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 594 oxoethyl 817 i-Bu 2-[(1H-indazol-5-yl)NH]-2-oxoethyl 4-[(2,6-dimethyl-4-pyridinyl)methoxy]phenyl 599 818 i-Bu 2-oxo-2-[(2-thiazol-yl)NH]ethyl 4-[3,5-bis(trifluoromethyl)phenyloxy]phenyl 659

The following tables contain representative examples of the present invention. Each entry in each table is intended to be paired with each formula at the start of the table. For example, in Table 2, example 1 is intended to be paired with each of formulae A1-FF3.

TABLE 2

Ex # R¹⁰ 1 H 2 methyl 3 methoxy 4 1-methylethyl 5 1-methylethoxy 6 phenyl 7 [1,1′-biphenyl]-4-yl 8 phenoxy 9 2-phenylethyl 10 2-(3,5-dimethylphenyl)ethyl 11 1-(2,6-dimethylphenyl)ethyl 12 2 -phenylethenyl 13 phenoxymethyl 14 (2-methylphenyl)methoxy 15 (3-methylphenyl)methoxy 16 3-methylphenoxy 17 2,6-dimethylphenoxy 18 (2,6-dimethylphenyl)methoxy 19 3,5-dimethylphenoxy 20 (3,5-dimethylphenyl)methoxy 21 2-(3,5-dimethylphenyl)ethyl 22 2-(3,5-dimethylphenyl)ethenyl 23 (3-amino-5-methylphenyl)methoxy 24 (2-amino-6-methylphenyl)methoxy 25 (3-cyano-5-methylphenyl)methoxy 26 (3-cyano-5-methylphenoxy)methyl 27 (3-cyano-5-nitrophenyl)methoxy 28 (3,5-diethoxyphenyl)methoxy 29 (3,5-dimethoxyphenyl)methoxy 30 3,5-dimethoxyphenoxy 31 2-(3,5-dimethoxyphenyl)ethyl 32 1-(3,5-dimethoxyphenyl)ethoxy 33 (3,5-dichlorophenyl)methoxy 34 (2,6-dichlorophenyl)methoxy 35 (3,5-dibromophenyl)methoxy 36 3,5-dibromophenoxy 37 (3-amino-5-cyanophenyl)methoxy 38 [2,6-bis(trifluoromethyl)phenyl]methoxy 39 2,6-bis(trifluoromethyl)phenoxy 40 (3-aminocarbonyl-5-methylphenyl)methoxy 41 ([1,1′-biphenyl]-2-yl)methoxy 42 ([1,1′-biphenyl]-3-yl)methoxy 43 [5-methyl-3-(methylsulfonyl)phenyl]methoxy 44 5-methyl-3-(methylsulfonyl)phenoxy 45 (2-pyridinyl)methoxy 46 (4-pyridinyl)methoxy 47 (2,6-dimethyl-4-pyridinyl)methoxy 48 2,6-dimethyl-4-pyridinyloxy 49 1-(2,6-dimethyl-4-pyridinyl)ethoxy 50 (3,5-dimethyl-4-pyridinyl)methoxy 51 (2,6-diethyl-4-pyridinyl)methoxy 52 (2,6-dichloro-4-pyridinyl)methoxy 53 (2,6-dimethoxy-4-pyridinyl)methoxy 54 (2-chloro-6-methyl-4-pyridinyl)methoxy 55 (2-chloro-6-methoxy-4-pyridinyl)methoxy 56 (2-methoxy-6-methyl-4-pyridinyl)methoxy 57 (1-naphthalenyl)methoxy 58 1-naphthalenyloxy 59 (2-naphthalenyl)methoxy 60 (2-methyl-1-naphthalenyl)methoxy 61 (4-methyl-2-naphthalenyl)methoxy 62 (4-quinolinyl)methoxy 63 1-(4-quinolinyl)ethoxy 64 4-quinolinyloxy 65 (4-quinolinyloxy)methyl 66 2-(4-quinolinyl)ethyl 67 (2-methyl-4-quinolinyl)methoxy 68 2-methyl-4-quinolinyloxy 69 (2-chloro-4-quinolinyl)methoxy 70 (2-methoxy-4-quinolinyl)methoxy 71 (2-hydroxy-4-quinolinyl)methoxy 72 (2-trifluoromethyl-4-quinolinyl)methoxy 73 (2-phenyl-4-quinolinyl)methoxy 74 (2,6-dimethyl-4-quinolinyl)methoxy 75 (2,7-dimethyl-4-quinolinyl)methoxy 76 (5-quinolinyl)methoxy 77 (7-methyl-5-quinolinyl)methoxy 78 (7-methoxy-5-quinolinyl)methoxy 79 (8-quinolinyl)methoxy 80 2-(1,2,3-benzotriazol-1-yl)ethyl 81 (2-benzimidazolyl)methoxy 82 (1,4-dimethyl-5-imidazolyl)methoxy 83 (3,5-dimethyl-4-isoxazolyl)methoxy 84 (4,5-dimethyl-2-oxazolyl)methoxy 85 (2,5-dimethyl-4-thiazolyl)methoxy 86 (3,5-dimethyl-1-pyrazolyl)ethyl 87 (1,3-benzodioxo-4-yl)methoxy 88 (1,3,5-trimethyl-4-pyrazolyl)methoxy 89 (2,6-dimethyl-A-pyrimidinyl)methoxy 90 (4,5-dimethyl-2-furanyl)methoxy 91 (4,5-dimethyl-2-thiazolyl)methoxy 92 2-(2-oxazolyl)ethyl

TABLE 3

Ex # R² R¹⁰ 1 amino methoxy 2 amino 1-methylethyl 3 amino 1-methylethoxy 4 amino phenyl 5 amino phenoxy 6 amino 2-phenylethyl 7 amino 2-(3,5-dimethylphenyl)ethyl 8 amino 2-phenylethenyl 9 amino phenoxymethyl 10 amino 3,5-dimethylphenoxy 11 amino (3,5-dimethylphenyl)methoxy 12 amino 2-(3,5-dimethylphenyl)ethyl 13 amino 2-(3,5-dimethylphenyl)ethenyl 14 amino (3-amino-5-methylphenyl)methoxy 15 amino (3,5-dimethoxyphenyl)methoxy 16 amino 3,5-dimethoxyphenoxy 17 amino 2-(3,5-dimethoxyphenyl)ethyl 18 amino (3,5-dichlorophenyl)methoxy 19 amino 3,5-dibromophenoxy 20 amino [2,6-bis(trifluoromethyl)phenyl]methoxy 21 amino 2,6-bis(trifluoromethyl)phenoxy 22 amino [5-methyl-3-(methylsulfonyl)phenyl]methoxy 23 amino 5-methyl-3-(methylsulfonyl)phenoxy 24 amino (2,6-dimethyl-4-pyridinyl)methoxy 25 amino 2,6-dimethyl-4-pyridinyloxy 26 amino (2,6-dichloro-4-pyridinyl)methoxy 27 amino (2-methoxy-6-methyl-4-pyridinyl)methoxy 28 amino (1-naphthalenyl)methoxy 29 amino 1-naphthalenyloxy 30 amino (2-naphthalenyl)methoxy 31 amino (2-methyl-1-naphthalenyl)methoxy 32 amino (4-methyl-2-naphthalenyl)methoxy 33 amino (4-quinolinyl)methoxy 34 amino 1-(4-quinolinyl)ethoxy 35 amino 4-quinolinyloxy 36 amino (4-quinolinyloxy)methyl 37 amino (2-methyl-4-quinolinyl)methoxy 38 amino 2-methyl-4-quinolinyloxy 39 amino (2-methoxy-4-quinolinyl)methoxy 40 amino 2-(1,2,3-benzotriazol-1-yl)ethyl 41 amino (2-benzimidazolyl)methoxy 42 amino (1,4-dimethyl-5-imidazolyl)methoxy 43 amino (3,5-dimethyl-4-isoxazolyl)methoxy 44 amino (4,5-dimethyl-2-oxazolyl)methoxy 45 amino (2,5-dimethyl-4-thiazolyl)methoxy 46 amino (3,5-dimethyl-1-pyrazolyl)ethyl 47 amino (1,3-benzodioxo-4-yl)methoxy 48 amino (1,3,5-trimethyl-4-pyrazolyl)methoxy 49 amino (2,6-dimethyl-4-pyrimidinyl)methoxy 50 amino (4,5-dimethyl-2-furanyl)methoxy 51 amino (4,5-dimethyl-2-thiazolyl)methoxy 52 amino 2-(2-oxazolyl)ethyl 53 methyl methoxy 54 methyl 1-methylethyl 55 methyl 1-methylethoxy 56 methyl phenyl 57 methyl phenoxy 58 methyl 2-phenylethyl 59 methyl 2-(3,5-dimethylphenyl)ethyl 60 methyl 2-phenylethenyl 61 methyl phenoxymethyl 62 methyl 3,5-dimethylphenoxy 63 methyl (3,5-dimethylphenyl)methoxy 64 methyl 2-(3,5-dimethylphenyl)ethyl 65 methyl 2-(3,5-dimethylphenyl)ethenyl 66 methyl (3-amino-5-methylphenyl)methoxy 67 methyl (3,5-dimethoxyphenyl)methoxy 68 methyl 3,5-dimethoxyphenoxy 69 methyl 2-(3,5-dimethoxyphenyl)ethyl 70 methyl (3,5-dichlorophenyl)methoxy 71 methyl 3,5-dibromophenoxy 72 methyl 2,6-bis(trifluoromethyl)phenyl]METHOXY 73 methyl 2,6-bis (trifluoromethyl)phenoxy 74 methyl [5-methyl-3-(methylsulfonyl)phenyl]methoxy 75 methyl 5-methyl-3-(methylsulfonyl)phenoxy 76 methyl (2,6-dimethyl-4-pyridinyl)methoxy 77 methyl 2,6-dimethyl-4-pyridinyloxy 78 methyl (2,6-dichloro-4-pyridinyl)methoxy 79 methyl (2-methoxy-6-methyl-4-pyridinyl)methoxy 80 methyl (1-naphthalenyl)methoxy 81 methyl 1-naphthalenyloxy 82 methyl (2-naphthalenyl)methoxy 83 methyl (2-methyl-1-naphthalenyl)methoxy 84 methyl (4-methyl-2-naphthalenyl)methoxy 85 methyl (4-quinolinyl)methoxy 86 methyl 1-(4-quinolinyl)ethoxy 87 methyl 4-quinolinyloxy 88 methyl (4-quinolinyloxy)methyl 89 methyl (2-methyl-4-quinolinyl)methoxy 90 methyl 2-methyl-4-quinolinyloxy 91 methyl (2-methoxy-4-quinolinyl)methoxy 92 methyl 2-(1,2,3-benzotriazol-1-yl)ethyl 93 methyl (2-benzimidazolyl)methoxy 94 methyl (1,4-dimethyl-5-imidazolyl)methoxy 95 methyl (3,5-dimethyl-4-isoxazolyl)methoxy 96 methyl (4,5-dimethyl-2-oxazolyl)methoxy 97 methyl (2,5-dimethyl-4-thiazolyl)methoxy 98 methyl (3,5-dimethyl-1-pyrazolyl)ethyl 99 methyl (1,3-benzodioxo-4-yl)methoxy 100 methyl (1,3,5-trimethyl-4-pyrazolyl)methoxy 101 methyl (2,6-dimethyl-4-pyrimidinyl)methoxy 102 methyl (4,5-dimethyl-2-furanyl)methoxy 103 methyl (4,5-dimethyl-2-thiazolyl)methoxy 104 methyl 2-(2-oxazolyl)ethyl

TABLE 4

Ex # R² R¹⁰ 1 amino methoxy 2 amino 1-methylethyl 3 amino 1-methylethoxy 4 amino phenyl 5 amino phenoxy 6 amino 2-phenylethyl 7 amino 2-(3,5-dimethylphenyl)ethyl 8 amino 2-phenylethenyl 9 amino phenoxymethyl 10 amino 3,5-dimethylphenoxy 11 amino (3,5-dimethylphenyl)methoxy 12 amino 2-(3,5-dimethylphenyl)ethyl 13 amino 2-(3,5-dimethylphenyl)ethenyl 14 amino (3-amino-5-methylphenyl)methoxy 15 amino (3,5-dimethoxyphenyl)methoxy 16 amino 3,5-dimethoxyphenoxy 17 amino 2-(3,5-dimethoxyphenyl)ethyl 18 amino (3,5-dichlorophenyl)methoxy 19 amino 3,5-dibromophenoxy 20 amino [2,6-bis(trifluoromethyl)phenyl]methoxy 21 amino 2,6-bis(trifluoromethyl)phenoxy 22 amino (5-methyl-3-(methylsulfonyl)phenyl]methoxy 23 amino 5-methyl-3-(methylsulfonyl)phenoxy 24 amino (2,6-dimethyl-4-pyridinyl)methoxy 25 amino 2,6-dimethyl-4-pyridinyloxy 26 amino (2,6-dichloro-4-pyridinyl)methoxy 27 amino (2-methoxy-6-methyl-4-pyridinyl)methoxy 28 amino (1-naphthalenyl)methoxy 29 amino 1-naphthalenyloxy 30 amino (2-naphthalenyl)methoxy 31 amino (2-methyl-1-naphthalenyl)methoxy 32 amino (4-methyl-2-naphthalenyl)methoxy 33 amino (4-quinolinyl)methoxy 34 amino 1-(4-quinolinyl)ethoxy 35 amino 4-quinolinyloxy 36 amino (4-quinolinyloxy)methyl 37 amino (2-methyl-4-quinolinyl)methoxy 38 amino 2-methyl-4-quinolinyloxy 39 amino (2-methoxy-4-quinolinyl)methoxy 40 amino 2-(1,2,3-benzotriazol-1-yl)ethyl 41 amino (2-benzimidazolyl)methoxy 42 amino (1,4-dimethyl-5-imidazolyl)methoxy 43 amino (3,5-dimethyl-4-isoxazolyl)methoxy 44 amino (4,5-dimethyl-2-oxazolyl)methoxy 45 amino (2,5-dimethyl-4-thiazolyl)methoxy 46 amino (3,5-dimethyl-1-pyrazolyl)ethyl 47 amino (1,3-benzodioxo-4-yl)methoxy 48 amino (1,3,5-trimethyl-4-pyrazolyl)methoxy 49 amino (2,6-dimethyl-4-pyrimidinyl)methoxy 50 amino (4,5-dimethyl-2-furanyl)methoxy 51 amino (4,5-dimethyl-2-thiazolyl)methoxy 52 amino 2-(2-oxazolyl)ethyl 53 methyl methoxy 54 methyl 1-methylethyl 55 methyl 1-methylethoxy 56 methyl phenyl 57 methyl phenoxy 58 methyl 2-phenylethyl 59 methyl 2-(3,5-dimethylphenyl)ethyl 60 methyl 2-phenylethenyl 61 methyl phenoxymethyl 62 methyl 3,5-dimethylphenoxy 63 methyl (3,5-dimethylphenyl)methoxy 64 methyl 2-(3,5-dimethylphenyl)ethyl 65 methyl 2-(3,5-dimethylphenyl)ethenyl 66 methyl (3-amino-5-methylphenyl)methoxy 67 methyl (3,5-dimethoxyphenyl)methoxy 68 methyl 3,5-dimethoxyphenoxy 69 methyl 2-(3,5-dimethoxyphenyl)ethyl 70 methyl (3,5-dichlorophenyl)methoxy 71 methyl 3,5-dibromophenoxy 72 methyl [2,6-bis(trifluoromethyl)phenyl]methoxy 73 methyl 2,6-bis(trifluoromethyl)phenoxy 74 methyl [5-methyl-3-(methylsulfonyl)phenyl]methoxy 75 methyl 5-methyl-3-(methylsulfonyl)phenoxy 76 methyl (2,6-dimethyl-4-pyridinyl)methoxy 77 methyl 2,6-dimethyl-4-pyridinyloxy 78 methyl (2,6-dichloro-4-pyridinyl)methoxy 79 methyl (2-methoxy-6-methyl-4-pyridinyl)methoxy 80 methyl (1-naphthalenyl)methoxy 81 methyl 1-naphthalenyloxy 82 methyl (2-naphthalenyl)methoxy 83 methyl (2-methyl-1-naphthalenyl)methoxy 84 methyl (4-methyl-2-naphthalenyl)methoxy 85 methyl (4-quinolinyl)methoxy 86 methyl 1-(4-quinolinyl)ethoxy 87 methyl 4-quinolinyloxy 88 methyl (4-quinolinyloxy)methyl 89 methyl (2-methyl-4-quinolinyl)methoxy 90 methyl 2-methyl-4-quinolinyloxy 91 methyl (2-methoxy-4-quinolinyl)methoxy 92 methyl 2-(1,2,3-benzotriazol-1-yl)ethyl 93 methyl (2-benzimidazolyl)methoxy 94 methyl (1,4-dimethyl-5-imidazolyl)methoxy 95 methyl (3,5-dimethyl-4-isoxazolyl)methoxy 96 methyl (4,5-dimethyl-2-oxazolyl)methoxy 97 methyl (2,5-dimethyl-4-thiazolyl)methoxy 98 methyl (3,5-dimethyl-1-pyrazolyl)ethyl 99 methyl (1,3-benzodioxo-4-yl)methoxy 100 methyl (1,3,5-trimethyl-4-pyrazolyl)methoxy 101 methyl (2,6-dimethyl-4-pyrimidinyl)methoxy 102 methyl (4,5-dimethyl-2-furanyl)methoxy 103 methyl (4,5-dimethyl-2-thiazolyl)methoxy 104 methyl 2-(2-oxazolyl)ethyl

TABLE 5

Ex # R¹ R² 1 Me H 2 OH H 3 NH₂ H 4 Me methyl 5 OH methyl 6 NH₂ methyl 7 Me ethyl 8 OH ethyl 9 NH₂ ethyl 10 Me isopropyl 11 OH isopropyl 12 NH₂ isopropyl 13 Me phenyl 14 OH phenyl 15 NH₂ phenyl 16 Me benzyl 17 OH benzyl 18 NH₂ benzyl 19 Me 2-phenylethyl 20 OH 2-phenylethyl 21 NH₂ 2-phenylethyl 22 Me 2-(2-methylphenyl)ethyl 23 OH 2-(2-methylphenyl)ethyl 24 NH₂ 2-(2-methylphenyl)ethyl 25 Me 2-(3-methylphenyl)ethyl 26 OH 2-(3-methylphenyl)ethyl 27 NH₂ 2-(3-methylphenyl)ethyl 28 Me 2-(2,6-dimethylphenyl)ethyl 29 OH 2-(2,6-dimethylphenyl)ethyl 30 NH₂ 2-(2,6-dimethylphenyl)ethyl 31 Me 2-(3,5-dimethylphenyl)ethyl 32 OH 2-(3,5-dimethylphenyl)ethyl 33 NH₂ 2-(3,5-dimethylphenyl)ethyl 34 Me 2-(3-amino-5-methylphenyl)ethyl 35 OH 2-(3-amino-5-methylphenyl)ethyl 36 NH₂ 2-(3-amino-5-methylphenyl)ethyl 37 Me 2-(pyridin-4-yl)ethyl 38 OH 2-(pyridin-4-yl)ethyl 39 NH₂ 2-(pyridin-4-yl)ethyl 40 Me 2-(2,6-dimethylpyridin-4-yl)ethyl 41 OH 2-(2,6-dimethylpyridin-4-yl)ethyl 42 NH₂ 2-(2,6-dimethylpyridin-4-yl)ethyl 43 Me 2-(3,5-dimethylpyridin-4-yl)ethyl 44 OH 2-(3,5-dimethylpyridin-4-yl)ethyl 45 NH₂ 2-(3,5-dimethylpyridin-4-yl)ethyl 46 Me styryl 47 OH styryl 48 NH₂ styryl 49 Me hydroxy 50 OH hydroxy 51 NH₂ hydroxy 52 Me methoxy 53 OH methoxy 54 NH₂ methoxy 55 Me ethoxy 56 OH ethoxy 57 NH₂ ethoxy 58 Me isopropyloxy 59 OH isopropyloxy 60 NH₂ isopropyloxy 61 Me tert-butoxy 62 OH tert-butoxy 63 NH₂ tert-butoxy 64 Me cyclohexyloxy 65 OH cyclohexyloxy 66 NH₂ cyclohexyloxy 67 Me phenoxy 68 OH phenoxy 69 NH₂ phenoxy 70 Me o-methylphenoxy 71 OH o-methylphenoxy 72 NH₂ o-methylphenoxy 73 Me m-methylphenoxy 74 OH m-methylphenoxy 75 NH₂ m-methylphenoxy 76 Me cinnamyloxy 77 OH cinnamyloxy 78 NH₂ cinnamyloxy 79 Me benzyloxy 80 OH benzyloxy 81 NH₂ benzyloxy 82 Me phenoxymethyl 83 OH phenoxymethyl 84 NH₂ phenoxymethyl 85 Me o-methylbenzyloxy 86 OH o-methylbenzyloxy 87 NH₂ o-methylbenzyloxy 88 Me m-methylbenzyloxy 89 OH m-methylbenzyloxy 90 NH₂ m-methylbenzyloxy 91 Me o,o-dimethylbenzyloxy 92 OH o,o-dimethylbenzyloxy 93 NH₂ o,o-dimethylbenzyloxy 94 Me (2,6-dimethylphenoxy)methyl 95 OH (2,6-dimethylphenoxy)methyl 96 NH₂ (2,6-dimethylphenoxy)methyl 97 Me m,m-dimethylbenzyloxy 98 OH m,m-dimethylbenzyloxy 99 NH₂ m,m-dimethylbenzyloxy 100 Me (3,5-dimethylphenoxy)methyl 101 OH (3,5-dimethylphenoxy)methyl 102 NH₂ (3,5-dimethylphenoxy)methyl 103 Me o,o-dicyanobenzyloxy 104 OH o,o-dicyanobenzyloxy 105 NH₂ o,o-dicyanobenzyloxy 106 Me m,m-dicyanobenzyloxy 107 OH m,m-dicyanobenzyloxy 108 NH₂ m,m-dicyanobenzyloxy 109 Me (2,6-dicyanophenoxy)methyl 110 OH (2,6-dicyanophenoxy)methyl 111 NH₂ (2,6-dicyanophenoxy)methyl 112 Me (3,5-dicyanophenoxy)methyl 113 OH (3,5-dicyanophenoxy)methyl 114 NH₂ (3,5-dicyanophenoxy)methyl 115 Me o-amino-o-cyanobenzyloxy 116 OH o-amino-o-cyanobenzyloxy 117 NH₂ o-amino-o-cyanobenzyloxy 118 Me m-amino-m-cyanobenzyloxy 119 OH m-amino-m-cyanobenzyloxy 120 NH₂ m-amino-m-cyanobenzyloxy 121 Me o-amino-o-nitrobenzyloxy 122 OH o-amino-o-nitrobenzyloxy 123 NH₂ o-amino-o-nitrobenzyloxy 124 Me m-amino-m-nitrobenzyloxy 125 OH m-amino-m-nitrobenzyloxy 126 NH₂ m-amino-m-nitrobenzyloxy 127 Me p-amino-m,m-dimethylbenzyloxy 128 OH p-amino-m,m-dimethylbenzyloxy 129 NH₂ p-amino-m,m-dimethylbenzyloxy 130 Me o-amino-o-methylbenzyloxy 131 OH o-amino-o-methylbenzyloxy 132 NH₂ o-amino-o-methylbenzyloxy 133 Me m-amino-m-methylbenzyloxy 134 OH m-amino-m-methylbenzyloxy 135 NH₂ m-amino-m-methylbenzyloxy 136 Me o-cyano-o-methylbenzyloxy 137 OH o-cyano-o-methylbenzyloxy 138 NH₂ o-cyano-o-methylbenzyloxy 139 Me m-cyano-m-methylbenzyloxy 140 OH m-cyano-m-methylbenzyloxy 141 NH₂ m-cyano-m-methylbenzyloxy 142 Me o-cyano-o-nitrobenzyloxy 143 OH o-cyano-o-nitrobenzyloxy 144 NH₂ o-cyano-o-nitrobenzyloxy 145 Me (2-cyano-6-nitrophenoxy)methyl 146 OH (2-cyano-6-nitrophenoxy)methyl 147 NH₂ (2-cyano-6-nitrophenoxy)methyl 148 Me m-cyano-m-nitrobenzyloxy 149 OH m-cyano-m-nitrobenzyloxy 150 NH₂ m-cyano-m-nitrobenzyloxy 151 Me (3-cyano-5-nitrophenoxy)methyl 152 OH (3-cyano-5-nitrophenoxy)methyl 153 NH₂ (3-cyano-5-nitrophenoxy)methyl 154 Me m,m-dimethoxybenzyloxy 155 OH m,m-dimethoxybenzyloxy 156 NH₂ m,m-dimethoxybenzyloxy 157 Me m,m-dichlorobenzyloxy 158 OH m,m-dichlorobenzyloxy 159 NH₂ m,m-dichlorobenzyloxy 160 Me (3,5-dichlorophenoxy)methyl 161 OH (3,5-dichlorophenoxy)methyl 162 NH₂ (3,5-dichlorophenoxy)methyl 163 Me m,m-dibromobenzyloxy 164 OH m,m-dibromobenzyloxy 165 NH₂ m,m-dibromobenzyloxy 166 Me m,m-bis(trifluoromethyl)benzyloxy 167 OH m,m-bis(trifluoromethyl)benzyloxy 168 NH₂ m,m-bis(trifluoromethyl)benzyloxy 169 Me [3,5-bis(trifluoromethyl)phenoxy]methyl 170 OH [3,5-bis(trifluoromethyl)phenoxy]methyl 171 NH₂ [3,5-bis(trifluoromethyl)phenoxy]methyl 172 Me m-carboxamido-m-methylbenzyloxy 173 OH m-carboxamido-m-methylbenzyloxy 174 NH₂ m-carboxamido-m-methylbenzyloxy 175 Me (3-carboxamido-5-methylphenoxy)methyl 176 OH (3-carboxamido-5-methylphenoxy)methyl 177 NH₂ (3-carboxamido-5-methylphenoxy)methyl 178 Me m-hydroxycarbonyl-m-methylbenzyloxy 179 OH m-hydroxycarbonyl-m-methylbenzyloxy 180 NH₂ m-hydroxycarbonyl-m-methylbenzyloxy 181 Me (3-hydroxycarbonyl-5-methylphenoxy)methyl 182 OH (3-hydroxycarbonyl-5-methylphenoxy)methyl 183 NH₂ (3-hydroxycarbonyl-5-methylphenoxy)methyl 184 Me o-phenylbenzyloxy 185 OH o-phenylbenzyloxy 186 NH₂ o-phenylbenzyloxy 187 Me m-phenylbenzyloxy 188 OH m-phenylbenzyloxy 189 NH₂ m-phenylbenzyloxy 190 Me (naphth-1-yl)methoxy 191 OH (naphth-1-yl)methoxy 192 NH₂ (naphth-1-yl)methoxy 193 Me (naphth-2-yl)methoxy 194 OH (naphth-2-yl)methoxy 195 NH₂ (naphth-2-yl)methoxy 196 Me (2-methylnaphth-1-yl)methoxy 197 OH (2-methylnaphth-1-yl)methoxy 198 NH₂ (2-methylnaphth-1-yl)methoxy 199 Me (4-methylnaphth-2-yl)methoxy 200 OH (4-methylnaphth-2-yl)methoxy 201 NH₂ (4-methylnaphth-2-yl)methoxy 202 Me (pyridin-3-yl)methoxy 203 OH (pyridin-3-yl)methoxy 204 NH₂ (pyridin-3-yl)methoxy 205 Me (pyridin-4-yl)methoxy 206 OH (pyridin-4-yl)methoxy 207 NH₂ (pyridin-4-yl)methoxy 208 Me (3,5-dichloropyridin-4-yl)methoxy 209 OH (3,5-dichloropyridin-4-yl)methoxy 210 NH₂ (3,5-dichloropyridin-4-yl)methoxy 211 Me (3,5-dimethylpyridin-4-yl)methoxy 212 OH (3,5-dimethylpyridin-4-yl)methoxy 213 NH₂ (3,5-dimethylpyridin-4-yl)methoxy 214 Me (1,2,3-benzotriazol-1-yl)methoxy 215 OH (1,2,3-benzotriazol-1-yl)methoxy 216 NH₂ (1,2,3-benzotriazol-1-yl)methoxy 217 Me benzhydroxy 218 OH benzhydroxy 219 NH₂ benzhydroxy 220 Me p-(1,2,3-thiadiazol-5-yl)benzyloxy 221 OH p-(1,2,3-thiadiazol-5-yl)benzyloxy 222 NH₂ p-(1,2,3-thiadiazol-5-yl)benzyloxy 223 Me o-(tetrazol-5-yl)benzyloxy 224 OH o-(tetrazol-5-yl)benzyloxy 225 NH₂ o-(tetrazol-5-yl)benzyloxy 226 Me m-(tetrazol-5-yl)benzyloxy 227 OH m-(tetrazol-5-yl)benzyloxy 228 NH₂ m-(tetrazol-5-yl)benzyloxy 229 Me (3-methyl-5-(tetrazol-5-yl)phenoxy)methyl 230 OH (3-methyl-5-(tetrazol-5-yl)phenoxy)methyl 231 NH₂ (3-methyl-5-(tetrazol-5-yl)phenoxy)methyl 232 Me m-methyl-m-(tetrazol-5-yl)benzyloxy 233 OH m-methyl-m-(tetrazol-5-yl)benzyloxy 234 NH₂ m-methyl-m-(tetrazol-5-yl)benzyloxy 235 Me 2-oxo-2-phenylethoxy 236 OH 2-oxo-2-phenylethoxy 237 NH₂ 2-oxo-2-phenylethoxy 238 Me carbo-t-butoxymethoxy 239 OH carbo-t-butoxymethoxy 240 NH₂ carbo-t-butoxymethoxy 241 Me (benzimidazol-2-yl)methoxy 242 OH (benzimidazol-2-yl)methoxy 243 NH₂ (benzimidazol-2-yl)methoxy 244 Me (imidazol-2-yl)methoxy 245 OH (imidazol-2-yl)methoxy 246 NH₂ (imidazol-2-yl)methoxy 247 Me (1,4-dimethylimidazol-5-yl)methoxy 248 OH (1,4-dimethylimidazol-5-yl)methoxy 249 NH₂ (1,4-dimethylimidazol-5-yl)methoxy 250 Me (thiazol-4-yl)methoxy 251 OH (thiazol-4-yl)methoxy 252 NH₂ (thiazol-4-yl)methoxy 253 Me (quinolin-2-yl)methoxy 254 OH (quinolin-2-yl)methoxy 255 NH₂ (quinolin-2-yl)methoxy 256 Me (1,3-benzodioxo-5-yl)methoxy 257 OH (1,3-benzodioxo-5-yl)methoxy 258 NH₂ (1,3-benzodioxo-5-yl)methoxy 259 Me (3,5-dimethylisoxazol-4-yl)methoxy 260 OH (3,5-dimethylisoxazol-4-yl)methoxy 261 NH₂ (3,5-dimethylisoxazol-4-yl)methoxy 262 Me (3,5-dimethylpyrazol-1-yl)methoxy 263 OH (3,5-dimethylpyrazol-1-yl)methoxy 264 NH₂ (3,5-dimethylpyrazol-1-yl)methoxy 265 Me (1,3,5-trimethylpyrazol-4-yl)methoxy 266 OH (1,3,5-trimethylpyrazol-4-yl)methoxy 267 NH₂ (1,3,5-trimethylpyrazol-4-yl)methoxy

TABLE 6

Ex # X Y R 1 CH₂ CH₂ H 2 CH₂ O H 3 O CH₂ H 4 CH₂ CH₂ methyl 5 CH₂ O methyl 6 O CH₂ methyl 7 CH₂ CH₂ ethyl 8 CH₂ O ethyl 9 O CH₂ ethyl 10 CH₂ CH₂ isopropyl 11 CH₂ O isopropyl 12 O CH₂ isopropyl 13 CH₂ CH₂ phenyl 14 CH₂ O phenyl 15 O CH₂ phenyl 16 CH₂ CH₂ benzyl 17 CH₂ O benzyl 18 O CH₂ benzyl 19 CH₂ CH₂ o-methylbenzyl 20 CH₂ O o-methylbenzyl 21 O CH₂ o-methylbenzyl 22 CH₂ CH₂ m-methylbenzyl 23 CH₂ O m-methylbenzyl 24 O CH₂ m-methylbenzyl 25 CH₂ CH₂ o,o-dimethylbenzyl 26 CH₂ O o,o-dimethylbenzyl 27 O CH₂ o,o-dimethylbenzyl 28 CH₂ CH₂ m,m-dimethylbenzyl 29 CH₂ O m,m-dimethylbenzyl 30 O CH₂ m,m-dimethylbenzyl 31 CH₂ CH₂ 2-phenylethyl 32 CH₂ O 2-phenylethyl 33 O CH₂ 2-phenylethyl 34 CH₂ CH₂ 2-(2-methylphenyl)ethyl 35 CH₂ O 2-(2-methylphenyl)ethyl 36 O CH₂ 2-(2-methylphenyl)ethyl 37 CH₂ CH₂ 2-(3-methylphenyl)ethyl 38 CH₂ O 2-(3-methylphenyl)ethyl 39 O CH₂ 2-(3-methylphenyl)ethyl 40 CH₂ CH₂ 2-(2,6-dimethylphenyl)ethyl 41 CH₂ O 2-(2,6-dimethylphenyl)ethyl 42 O CH₂ 2-(2,6-dimethylphenyl)ethyl 43 CH₂ CH₂ 2-(3,5-dimethylphenyl)ethyl 44 CH₂ O 2-(3,5-dimethylphenyl)ethyl 45 O CH₂ 2-(3,5-dimethylphenyl)ethyl 46 CH₂ CH₂ 2-(3-amino-5-methylphenyl)ethyl 47 CH₂ O 2-(3-amino-5-methylphenyl)ethyl 48 O CH₂ 2-(3-amino-5-methylphenyl)ethyl 49 CH₂ CH₂ 2-(pyridin-4-yl)ethyl 50 CH₂ O 2-(pyridin-4-yl)ethyl 51 O CH₂ 2-(pyridin-4-yl)ethyl 52 CH₂ CH₂ 2-(2,6-dimethylpyridin-4-yl)ethyl 53 CH₂ O 2-(2,6-dimethylpyridin-4-yl)ethyl 54 O CH₂ 2-(2,6-dimethylpyridin-4-yl)ethyl 55 CH₂ CH₂ 2-(3,5-dimethylpyridin-4-yl)ethyl 56 CH₂ O 2-(3,5-dimethylpyridin-4-yl)ethyl 57 O CH₂ 2-(3,5-dimethylpyridin-4-yl)ethyl 58 CH₂ CH₂ styryl 59 CH₂ O styryl 60 O CH₂ styryl 61 CH₂ CH₂ hydroxy 62 CH₂ O hydroxy 63 O CH₂ hydroxy 64 CH₂ CH₂ methoxy 65 CH₂ O methoxy 66 O CH₂ methoxy 67 CH₂ CH₂ ethoxy 68 CH₂ O ethoxy 69 O CH₂ ethoxy 70 CH₂ CH₂ isopropyloxy 71 CH₂ O isopropyloxy 72 O CH₂ isopropyloxy 73 CH₂ CH₂ tert-butoxy 74 CH₂ O tert-butoxy 75 O CH₂ tert-butoxy 76 CH₂ CH₂ cyclohexyloxy 77 CH₂ O cyclohexyloxy 78 O CH₂ cyclohexyloxy 79 CH₂ CH₂ phenoxy 80 CH₂ O phenoxy 81 O CH₂ phenoxy 82 CH₂ CH₂ o-methylphenoxy 83 CH₂ O o-methylphenoxy 84 O CH₂ o-methylphenoxy 85 CH₂ CH₂ m-methylphenoxy 86 CH₂ O m-methylphenoxy 87 O CH₂ m-methylphenoxy 88 CH₂ CH₂ o,o-dimethylphenoxy 89 CH₂ O o,o-dimethylphenoxy 90 O CH₂ o,o-dimethylphenoxy 91 CH₂ CH₂ m,m-dimethylphenoxy 92 CH₂ O m,m-dimethylphenoxy 93 O CH₂ m,m-dimethylphenoxy 94 CH₂ CH₂ cinnamyloxy 95 CH₂ O cinnamyloxy 96 O CH₂ cinnamyloxy 97 CH₂ CH₂ benzyloxy 98 CH₂ O benzyloxy 99 O CH₂ benzyloxy 100 CH₂ CH₂ phenoxymethyl 101 CH₂ O phenoxymethyl 102 O CH₂ phenoxymethyl 103 CH₂ CH₂ o-methylbenzyloxy 104 CH₂ O o-methylbenzyloxy 105 O CH₂ o-methylbenzyloxy 106 CH₂ CH₂ m-methylbenzyloxy 107 CH₂ O m-methylbenzyloxy 108 O CH₂ m-methylbenzyloxy 109 CH₂ CH₂ o,o-dimethylbenzyloxy 110 CH₂ O o,o-dimethylbenzyloxy 111 O CH₂ o,o-dimethylbenzyloxy 112 CH₂ CH₂ (2,6-dimethylphenoxy)methyl 113 CH₂ O (2,6-dimethylphenoxy)methyl 114 O CH₂ (2,6-dimethylphenoxy)methyl 115 CH₂ CH₂ m,m-dimethylbenzyloxy 116 CH₂ O m,m-dimethylbenzyloxy 117 O CH₂ m,m-dimethylbenzyloxy 118 CH₂ CH₂ (3,5-dimethylphenoxy)methyl 119 CH₂ O (3,5-dimethylphenoxy)methyl 120 O CH₂ (3,5-dimethylphenoxy)methyl 121 CH₂ CH₂ o,o-dicyanobenzyloxy 122 CH₂ O o,o-dicyanobenzyloxy 123 O CH₂ o,o-dicyanobenzyloxy 124 CH₂ CH₂ m,m-dicyanobenzyloxy 125 CH₂ O m,m-dicyanobenzyloxy 126 O CH₂ m,m-dicyanobenzyloxy 127 CH₂ CH₂ (2,6-dicyanophenoxy)methyl 128 CH₂ O (2,6-dicyanophenoxy)methyl 129 O CH₂ (2,6-dicyanophenoxy)methyl 130 CH₂ CH₂ (3,5-dicyanophenoxy)methyl 131 CH₂ O (3,5-dicyanophenoxy)methyl 132 O CH₂ (3,5-dicyanophenoxy)methyl 133 CH₂ CH₂ o-amino-o-cyanobenzyloxy 134 CH₂ O o-amino-o-cyanobenzyloxy 135 O CH₂ o-amino-o-cyanobenzyloxy 136 CH₂ CH₂ m-amino-m-cyanobenzyloxy 137 CH₂ O m-amino-m-cyanobenzyloxy 138 O CH₂ m-amino-m-cyanobenzyloxy 139 CH₂ CH₂ o-amino-o-nitrobenzyloxy 140 CH₂ O o-amino-o-nitrobenzyloxy 141 O CH₂ o-amino-o-nitrobenzyloxy 142 CH₂ CH₂ m-amino-m-nitrobenzyloxy 143 CH₂ O m-amino-m-nitrobenzyloxy 144 O CH₂ m-amino-m-nitrobenzyloxy 145 CH₂ CH₂ p-amino-m,m-dimethylbenzyloxy 146 CH₂ O p-amino-m,m-dimethylbenzyloxy 147 O CH₂ p-amino-m,m-dimethylbenzyloxy 148 CH₂ CH₂ o-amino-o-methylbenzyloxy 149 CH₂ O o-amino-o-methylbenzyloxy 150 O CH₂ o-amino-o-methylbenzyloxy 151 CH₂ CH₂ m-amino-m-methylbenzyloxy 152 CH₂ O m-amino-m-methylbenzyloxy 153 O CH₂ m-amino-m-methylbenzyloxy 154 CH₂ CH₂ o-cyano-o-methylbenzyloxy 155 CH₂ O o-cyano-o-methylbenzyloxy 156 O CH₂ o-cyano-o-methylbenzyloxy 157 CH₂ CH₂ m-cyano-m-methylbenzyloxy 158 CH₂ O m-cyano-m-methylbenzyloxy 159 O CH₂ m-cyano-m-methylbenzyloxy 160 CH₂ CH₂ o-cyano-o-nitrobenzyloxy 161 CH₂ O o-cyano-o-nitrobenzyloxy 162 O CH₂ o-cyano-o-nitrobenzyloxy 163 CH₂ CH₂ (2-cyano-6-nitrophenoxy)methyl 164 CH₂ O (2-cyano-6-nitrophenoxy)methyl 165 O CH₂ (2-cyano-6-nitrophenoxy)methyl 166 CH₂ CH₂ m-cyano-m-nitrobenzyloxy 167 CH₂ O m-cyano-m-nitrobenzyloxy 168 O CH₂ m-cyano-m-nitrobenzyloxy 169 CH₂ CH₂ (3-cyano-5-nitrophenoxy)methyl 170 CH₂ O (3-cyano-5-nitrophenoxy)methyl 171 O CH₂ (3-cyano-5-nitrophenoxy)methyl 172 CH₂ CH₂ m,m-dimethoxybenzyloxy 173 CH₂ O m,m-dimethoxybenzyloxy 174 O CH₂ m,m-dimethoxybenzyloxy 175 CH₂ CH₂ m,m-dichlorobenzyloxy 176 CH₂ O m,m-dichlorobenzyloxy 177 O CH₂ m,m-dichlorobenzyloxy 178 CH₂ CH₂ (3,5-dichlorophenoxy)methyl 179 CH₂ O (3,5-dichlorophenoxy)methyl 180 O CH₂ (3,5-dichlorophenoxy)methyl 181 CH₂ CH₂ m,m-dibromobenzyloxy 182 CH₂ O m,m-dibromobenzyloxy 183 O CH₂ m,m-dibromobenzyloxy 184 CH₂ CH₂ m,m-bis(trifluoromethyl)benzyloxy 185 CH₂ O m,m-bis(trifluoromethyl)benzyloxy 186 O CH₂ m,m-bis(trifluoromethyl)benzyloxy 187 CH₂ CH₂ [3,5-bis(trifluoromethyl)phenoxy]methyl 188 CH₂ O [3,5-bis(trifluoromethyl)phenoxy]methyl 189 O CH₂ [3,5-bis(trifluoromethyl)phenoxy]methyl 190 CH₂ CH₂ m-carboxamido-m-methylbenzyloxy 191 CH₂ O m-carboxamido-m-methylbenzyloxy 192 O CH₂ m-carboxamido-m-methylbenzyloxy 193 CH₂ CH₂ (3-carboxamido-5-methylphenoxy)methyl 194 CH₂ O (3-carboxamido-5-methylphenoxy)methyl 195 O CH₂ (3-carboxamido-5-methylphenoxy)methyl 196 CH₂ CH₂ m-hydroxycarbonyl-m-methylbenzyloxy 197 CH₂ O m-hydroxycarbonyl-m-methylbenzyloxy 198 O CH₂ m-hydroxycarbonyl-m-methylbenzyloxy 199 CH₂ CH₂ (3-hydroxycarbonyl-5-methylphenoxy)methyl 200 CH₂ O (3-hydroxycarbonyl-5-methylphenoxy)methyl 201 O CH₂ (3-hydroxycarbonyl-5-methylphenoxy)methyl 202 CH₂ CH₂ o-phenylbenzyloxy 203 CH₂ O o-phenylbenzyloxy 204 O CH₂ o-phenylbenzyloxy 205 CH₂ CH₂ m-phenylbenzyloxy 206 CH₂ O m-phenylbenzyloxy 207 O CH₂ m-phenylbenzyloxy 208 CH₂ CH₂ (naphth-1-yl)methoxy 209 CH₂ O (naphth-1-yl)methoxy 210 O CH₂ (naphth-1-yl)methoxy 211 CH₂ CH₂ (naphth-2-yl)methoxy 212 CH₂ O (naphth-2-yl)methoxy 213 O CH₂ (naphth-2-yl)methoxy 214 CH₂ CH₂ (2-methylnaphth-1-yl)methoxy 215 CH₂ O (2-methylnaphth-1-yl)methoxy 216 O CH₂ (2-methylnaphth-1-yl)methoxy 217 CH₂ CH₂ (4-methylnaphth-2-yl)methoxy 218 CH₂ O (4-methylnaphth-2-yl)methoxy 219 O CH₂ (4-methylnaphth-2-yl)methoxy 220 CH₂ CH₂ (pyridin-3-yl)methoxy 221 CH₂ O (pyridin-3-yl)methoxy 222 O CH₂ (pyridin-3-yl)methoxy 223 CH₂ CH₂ (pyridin-4-yl)methoxy 224 CH₂ O (pyridin-4-yl)methoxy 225 O CH₂ (pyridin-4-yl)methoxy 226 CH₂ CH₂ (3,5-dichloropyridin-4-yl)methoxy 227 CH₂ O (3,5-dichloropyridin-4-yl)methoxy 228 O CH₂ (3,5-dichloropyridin-4-yl)methoxy 229 CH₂ CH₂ (3,5-dimethylpyridin-4-yl)methoxy 230 CH₂ O (3,5-dimethylpyridin-4-yl)methoxy 231 O CH₂ (3,5-dimethylpyridin-4-yl)methoxy 232 CH₂ CH₂ (1,2,3-benzotriazol-1-yl)methoxy 233 CH₂ O (1,2,3-benzotriazol-1-yl)methoxy 234 O CH₂ (1,2,3-benzotriazol-1-yl)methoxy 235 CH₂ CH₂ benzhydroxy 236 CH₂ O benzhydroxy 237 O CH₂ benzhydroxy 238 CH₂ CH₂ p-(1,2,3-thiadiazol-5-yl)benzyloxy 239 CH₂ O p-(1,2,3-thiadiazol-5-yl)benzyloxy 240 O CH₂ p-(1,2,3-thiadiazol-5-yl)benzyloxy 241 CH₂ CH₂ o-(tetrazol-5-yl)benzyloxy 242 CH₂ O o-(tetrazol-5-yl)benzyloxy 243 O CH₂ o-(tetrazol-5-yl)benzyloxy 244 CH₂ CH₂ m-(tetrazol-5-yl)benzyloxy 245 CH₂ O m-(tetrazol-5-yl)benzyloxy 246 O CH₂ m-(tetrazol-5-yl)benzyloxy 247 CH₂ CH₂ [3-methyl-5-(tetrazol-5-yl)phenoxy]methyl 248 CH₂ O [3-methyl-5-(tetrazol-5-yl)phenoxy]methyl 249 O CH₂ [3-methyl-5-(tetrazol-5-yl)phenoxy]methyl 250 CH₂ CH₂ m-methyl-m-(tetrazol-5-yl)benzyloxy 251 CH₂ O m-methyl-m-(tetrazol-5-yl)benzyloxy 252 O CH₂ m-methyl-m-(tetrazol-5-yl)benzyloxy 253 CH₂ CH₂ 2-oxo-2-phenylethoxy 254 CH₂ O 2-oxo-2-phenylethoxy 255 O CH₂ 2-oxo-2-phenylethoxy 256 CH₂ CH₂ carbo-t-butoxymethoxy 257 CH₂ O carbo-t-butoxymethoxy 258 O CH₂ carbo-t-butoxymethoxy 259 CH₂ CH₂ (benzimidazol-2-yl)methoxy 260 CH₂ O (benzimidazol-2-yl)methoxy 261 O CH₂ (benzimidazol-2-yl)methoxy 262 CH₂ CH₂ (imidazol-2-yl)methoxy 263 CH₂ O (imidazol-2-yl)methoxy 264 O CH₂ (imidazol-2-yl)methoxy 265 CH₂ CH₂ (1,4-dimethylimidazol-5-yl)methoxy 266 CH₂ O (1,4-dimethylimidazol-5-yl)methoxy 267 O CH₂ (1,4-dimethylimidazol-5-yl)methoxy 268 CH₂ CH₂ (thiazol-4-yl)methoxy 269 CH₂ O (thiazol-4-yl)methoxy 270 O CH₂ (thiazol-4-yl)methoxy 271 CH₂ CH₂ (quinolin-2-yl)methoxy 272 CH₂ O (quinolin-2-yl)methoxy 273 O CH₂ (quinolin-2-yl)methoxy 274 CH₂ CH₂ (1,3-benzodioxo-5-yl)methoxy 275 CH₂ O (1,3-benzodioxo-5-yl)methoxy 276 O CH₂ (1,3-benzodioxo-5-yl)methoxy 277 CH₂ CH₂ (3,5-dimethylisoxazol-4-yl)methoxy 278 CH₂ O (3,5-dimethylisoxazol-4-yl)methoxy 279 O CH₂ (3,5-dimethylisoxazol-4-yl)methoxy 280 CH₂ CH₂ (3,5-dimethylpyrazol-1-yl)methoxy 281 CH₂ O (3,5-dimethylpyrazol-1-yl)methoxy 282 O CH₂ (3,5-dimethylpyrazol-1-yl)methoxy 283 CH₂ CH₂ (1,3,5-trimethylpyrazol-4-yl)methoxy 284 CH₂ O (1,3,5-trimethylpyrazol-4-yl)methoxy 285 O CH₂ (1,3,5-trimethylpyrazol-4-yl)methoxy

UTILITY

The compounds of formula I are expected to be metalloproteinase inhibitors. The MMP-3 inhibitory activity of the compounds of the present invention is demonstrated using assays of MMP-3 activity, for example, using the assay described below for assaying inhibitors of MMP-3 activity. The compounds of the present invention are expected to be bioavailable in vivo as demonstrated, for example, using the ex vivo assay described below. The compounds of formula I are expected to have the ability to suppress/inhibit cartilage degradation in vivo, for example, as demonstrated using the animal model of acute cartilage degradation described below.

The compounds provided by this invention should also be a useful as standards and reagents in determining the ability of a potential pharmaceutical to inhibit MPs. These would be provided in commercial kits comprising a compound of this invention.

Metalloproteinases have also been implicated in the degradation of basement membranes to allow infiltration of cancer cells into the circulation and subsequent penetration into other tissues leading to tumor metastasis. (Stetler-Stevenson, Cancer and Metastasis Reviews, 9, 289-303, 1990.) The compounds of the present invention should be useful for the prevention and treatment of invasive tumors by inhibition of this aspect of metastasis.

The compounds of the present invention should also have utility for the prevention and treatment of osteopenia associated with matrix metalloproteinase-mediated breakdown of cartilage and bone which occurs in osteoporosis patients.

Compounds which inhibit the production or action of TNF and/or Aggrecanase and/or MP's are potentially useful for the treatment or prophylaxis of various inflammatory, infectious, immunological or malignant diseases. These include, but are not limited to inflammation, fever, cardiovascular effects, hemorrhage, coagulation and acute phase response, an acute infection, septic shock, haemodynamic shock and sepsis syndrome, post ischaemic reperfusion injury, malaria, Crohn's disease, mycobacterial infection, meningitis, psoriasis, periodontits, gingivitis, congestive heart failure, fibrotic disease, cachexia, and aneroxia, graft rejection, cancer, corneal ulceration or tumor invasion by secondary metastases, autoimmune disease, skin inflammatory diseases, multiple osteo and rheumatoid arthritis, multiple sclerosis, radiation damage, HIV, and hyperoxic alveolar injury.

Some compounds of the present invention have been shown to inhibit TNF production in lipopolysacharride stimulated mice, for example, using the assay for TNF Induction in Mice and in human whole blood as described below.

Some compounds of the present invention have been shown to inhibit aggrecanase a key enzyme in cartilage breakdown as determined by the aggrecanas assay described below.

As used herein “μg” denotes microgram, “mg” denotes milligram, “g” denotes gram, “μL” denotes microliter, “mL” denotes milliliter, “L” denotes liter, “nM” denotes nanomolar, “μM” denotes micromolar, “mM” denotes millimolar, “M” denotes molar and “nm” denotes nanometer. “Sigma” stands for the Sigma-Aldrich Corp. of St. Louis, Mo.

A compound is considered to be active if it has an IC₅₀ or K_(i) value of less than about 1 mM for the inhibition of MMP-3.

Aggrecanase Enzymatic Assay

A novel enzymatic assay was developed to detect potential inhibitors of aggrecanase. The assay uses active aggrecanase accumulated in media from stimulated bovine nasal cartilage (BNC) or related cartilage sources and purified cartilage aggrecan monomer or a fragment thereof as a substrate.

The substrate concentration, amount of aggrecanase time of incubation and amount of product loaded for Western analysis were optimized for use of this assay in screening putative aggrecanase inhibitors. Aggrecanase is generated by stimulation of cartilage slices with interleukin-1 (IL-1), tumor necrosis factor alpha (TNF∂) or other stimuli. Matrix metalloproteinases (MMPs) are secreted from cartilage in an inactive, zymogen form following stimulation, although active enzymes are present within the matrix. We have shown that following depletion of the extracellular aggrecan matrix, active MMPs are released into the culture media. (Tortorella, M. D. et. al. Trans. Ortho. Res. Soc. 20, 341, 1995). Therefore, in order to accumulate BNC aggrecanase in culture media, cartilage is first depleted of endogenous aggrecan by stimulation with 500 ng/ml human recombinant IL-β for 6 days with media changes every 2 days. Cartilage is then stimulated for an additional 8 days without media change to allow accumulation of soluble, active aggrecanase in the culture media. In order to decrease the amounts of other matrix metalloproteinases released into the media during aggrecanase accumulation, agents which inhibit MMP-1, -2, -3, and -9 biosynthesis are included during stimulation. This BNC conditioned media, containing aggrecanase activity is then used as the source of aggrecanase for the assay. Aggrecanase enzymatic activity is detected by monitoring production of aggrecan fragments produced exclusively by cleavage at the Glu373-Ala374 bond within the aggrecan core protein by Western analysis using the monoclonal antibody, BC-3 (Hughes, C E, et al., Biochem J 306:799-804, 1995). This antibody recognizes aggrecan fragments with the N-terminus, 374ARGSVIL, generated upon cleavage by aggrecanase. The BC-3 antibody recognizes this neoepitope only when it is at the N-terminus and not when it is present internally within aggrecan fragments or within the aggrecan protein core. Other proteases produced by cartilage in response to IL-1 do not cleave aggrecan at the Glu373-Ala374 aggrecanase site; therefore, only products produced upon cleavage by aggrecanase are detected. Kinetic studies using this assay yield a Km of 1.5+/−0.35 uM for aggrecanase.

To evaluate inhibition of aggrecanase, compounds are prepared as 10 mM stocks in DMSO, water or other solvents and diluted to appropriate concentrations in water. Drug (50 ul) is added to 50 ul of aggrecanase-containing media and 50 ul of 2 mg/ml aggrecan substrate and brought to a final volume of 200 ul in 0.2 M Tris, pH 7.6, containing 0.4 M NaCl and 40 mM CaCl₂. The assay is run for 4 hr at 37° C., quenched with 20 mM EDTA and analyzed for aggrecanase-generated products. A sample containing enzyme and substrate without drug is included as a positive control and enzyme incubated in the absence of substrate serves as a measure of background.

Removal of the glycosaminoglycan side chains from aggrecan is necessary for the BC-3 antibody to recognize the ARGSVIL epitope on the core protein. Therefore, for analysis of aggrecan fragments generated by cleavage at the Glu373Ala374 site, proteoglycans and proteoglycan fragments are enzymatically deglycosylated with chondroitinase ABC (0.1 units/10 ug GAG) for 2 hr at 37° C. and then with keratanase (0.1 units/10 ug GAG) and keratanase II (0.00.2 units/10 ug GAG) for 2 hr at 37° C. in buffer containing 50 mM sodium acetate, 0.1 M Tris/HCl, pH 6.5. After digestion, aggrecan in the samples is precipitated with 5 volumes of acetone and resuspended in 30 ul of Tris glycine SDS sample buffer (Novex) containing 2.5% beta mercaptoethanol. Samples are loaded and then separated by SDS-PAGE under reducing conditions with 4-12% gradient gels, transferred to nitrocellulose and immunolocated with 1:500dilution of antibody BC3.

Subsequently, membranes are incubated with a 1:5000 dilution of goat anti-mouse IgG alkaline phosphatase second antibody and aggrecan catabolites visualized by incubation with appropriate substrate for 10-30 minutes to achieve optimal color development. Blots are quantitated by scanning densitometry and inhibition of aggrecanase determined by comparing the amount of product produced in the presence versus absence of compound.

Bisacetylated Substance P/MMP-3 Fluorescent Assay

A high capacity enzymatic assay was developed to detect potential inhibitors of MMP-3. The assay uses.a derivative of a peptide substrate, substance P (Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met), which is cleaved by MMP-3 exclusively at the glutamine-phenylalanine bond. In order to adapt this assay for high throughput screening, we have developed a fluorimetric method of product detection. The production of the hydrolysis product, substance P 7-11, is measured by reaction with fluorescamine, a fluorogenic compound which reacts with the primary amine of this fragment. The substance P substrate is bisacetylated to block the primary amines of the intact substrate. Thus, the resulting fluorescence represents generation of product (7-11 peptide) formed upon cleavage by MMP-3, and is quantitated using a standard curve prepared with known concentrations of 7-11 peptide. Kinetic studies using the bisacetylated substrate yield the following parameters for MMP-3: Km=769+/−52 uM; Vmax=0.090+/−0.003 nmoles 7-11 peptide/min.

To evaluate inhibition of MMP-3, compounds were prepared at a concentration of 10 mM in 100% methanol, and then further diluted to a 20×molar stock. Five microliters of each drug stock was added to the assay in the presence of 20 nM truncated MMP-3 in 67.5 mM tricine (pH 7.5), 10 mM CaCl₂, 40 mM NaCl, and 0.005% Brij 35 in a final volume of 100 microliters. Bisacetylated substance P (1000 mM) was added, and the assay was run for 1 hour at 25° C. The reaction was quenched with EDTA (20 mM) and product was detected fluorometrically following addition of fluorescamine (0.075 mg/ml). Fluorescence of each sample was converted to an amount of product formed using a substance P 7-11 standard curve. Under these conditions, the assay is linear with respect to MMP-3 amount up to 10 pmoles. Inhibition of MMP-3 was determined by comparing the amount of product generated in the presence and absence of compound.

Selected compounds of the present invention were tested and shown to have activity in the above assay.

Ex Vivo Assay for Bioavailability of MMP-3 Inhibitors

Blood was collected by cardiac puncture from rats at different times after dosing I.V., I.P., or P.O. with compound in order to determine the levels of inhibitor present. Plasma was extracted with 10% TCA in 95% methanol, and placed on ice for 10 minutes. The plasma was then centrifuged for 15 minutes at 14,000 rpm in an Eppendorf microcentrifuge. The supernatant was removed, recentrifuged, and the resulting supernatant was diluted 1:10 in 50 mM tricine, pH 8.5. The pH of the sample was adjusted to 7.5, and then assayed in the MMP-3 substance P fluorescent enzymatic assay. Plasma from naive rats was extracted by the same method and used as a negative control. This plasma was also used to prepare a spiked plasma curve of the compound of interest. Known concentrations of the compound were added to control plasma, the plasma was extracted by the same method, and then assayed in the MMP-3 enzymatic assay. A standard curve was prepared that related percent inhbition in the MMP-3 assay to the concentration of drug added in the spiked samples. Based on the percent inhibition in the presence of plasma from dosed rats, the concentration of compound was determined using the standard curve.

Acute Cartilage Degradation Rat Model

A novel in vivo model of acute cartilage degradation in rats has been characterized as a method to determine the proteoglycan content in the synovial fluid after the induction of cartilage degradation. Experimental groups exhibit increased levels of proteoglycan content in their synovial fluid versus control rats. The criteria to demonstrate a compound's activity in this model, is the ability to inhibit the demonstration of cartilage degradation, as measured by increased proteoglycan content in the synovial fluid of rats after compound administration. Indomethacin, a non-steroidal anti-inflammatory drug is inactive in this model. Indomethacin administration does not inhibit the demonstration of cartilage degradation in experimental animals. In contrast, administration of a compound of this invention significantly inhibited the demonstration of cartilage degradation in this model.

TNF Human Whole Blood Assay

Blood is drawn from normal donors into tubes containing 143 USP units of heparin/10 ml. 225 ul of blood is plated directly into sterile polypropylene tubes. Compounds are diluted in DMSO/serum free media and added to the blood samples so the final concentration of compounds are 50, 10, 5, 1, 0.5, 0.1, and 0.01 μM. The final concentration of DMSO does not exceed 0.5%. Compounds are preincubated for 15 minutes before the addition of 100 ng/ml LPS. Plates are incubated for 5 hours in an atmosphere of 5% CO₂ in air. At the end of 5 hours, 750 ul of serum free media is added to each tube and the samples are spun at 1200 RPM for 10 minutes. The supernatant is collected off the top and assayed for TNF-alpha production by a standard sandwich ELISA. The ability of compounds to inhibit TNF-alpha production by 50% compared to DMSO treated cultures is given by the IC50 value.

TNF Induction in Mice

Test compounds are administered to mice either I.P. or P.O. at time zero. Immediately following compound administration, mice receive an I.P. injection of 20 mg of D-galactosamine plus 10 μg of lipopolysaccharide. One hour later, animals are anesthetized and bled by cardiac puncture. Blood plasma is evaluated for TNF levels by an ELISA specific for mouse TNF. Administration of representative compounds of the present invention to mice results in a dose-dependent suppression of plasma TNF levels at one hour in the above assay.

Dosage and Formulation

The compounds of the present invention can be administered orally using any pharmaceutically acceptable dosage form known in the art for such administration. The active ingredient can be supplied in solid dosage forms such as dry powders, granules, tablets or capsules, or in liquid dosage forms, such as syrups or aqueous suspensions. The active ingredient can be administered alone, but is generally administered with a pharmaceutical carrier. A valuable treatise with respect to pharmaceutical dosage forms is Remington's Pharmaceutical Sciences, Mack Publishing.

The compounds of the present invention can be administered in such oral dosage forms as tablets, capsules (each of which includes sustained release or timed release formulations), pills, powders, granules, elixirs, tinctures, suspensions, syrups, and emulsions. Likewise, they may also be administered in intravenous (bolus or infusion), intraperitoneal, subcutaneous, or intramuscular form, all using dosage forms well known to those of ordinary skill in the pharmaceutical arts. An effective but non-toxic amount of the compound desired can be employed as an antiinflammatory and antiarthritic-agent.

The compounds of this invention can be administered by any means that produces contact of the active agent with the agent's site of action, MMP-3, in the body of a mammal. They can be administered by any conventional means available for use in conjunction with pharmaceuticals, either as individual therapeutic agents or in a combination of therapeutic agents. They can be administered alone, but generally administered with a pharmaceutical carrier selected on the basis of the chosen route of administration and standard pharmaceutical practice.

The dosage regimen for the compounds of the present invention will, of course, vary depending upon known factors, such as the pharmacodynamic characteristics of the particular agent and its mode and route of administration; the species, age, sex, health, medical condition, and weight of the recipient; the nature and extent of the symptoms; the kind of concurrent treatment; the frequency of treatment; the route of administration, the renal and hepatic function of the patient,and the effect desired. An ordinarily skilled physician or veterinarian can readily determine and prescribe the effective amount of the drug required to prevent, counter, or arrest the progress of the condition.

By way of general guidance, the daily oral dosage of each active ingredient, when used for the indicated effects, will range between about 0.001 to 1000 mg/kg of body weight, preferably between about 0.01 to 100 mg/kg of body weight per day, and most preferably between about 1.0 to 20 mg/kg/day. For a normal male adult human of approximately 70 kg of body weight, this translates into a dosage of 70 to 1400 mg/day. Intravenously, the most preferred doses will range from about 1 to about 10 mg/kg/minute during a constant rate infusion. Advantageously, compounds of the present invention may be administered in a single daily dose, or the total daily dosage may be administered in divided doses of two, three, or four times daily.

The compounds for the present invention can be administered in intranasal form via topical use of suitable intranasal vehicles, or via transdermal routes, using those forms of transdermal skin patches wall known to those of ordinary skill in that art. To be administered in the form of a transdermal delivery system, the dosage administration will, of course, be continuous rather than intermittent throughout the dosage regimen.

In the methods of the present invention, the compounds herein described detail can form the active ingredient, and are typically administered in admixture with suitable pharmaceutical diluents, excipients, or carriers (collectively referred to herein as carrier materials) suitably selected with respect to the intended form of administration, that is, oral tablets, capsules, elixirs, syrups and the like, and consistent with conventional pharmaceutical practices.

For instance, for oral administration in the form of a tablet or capsule, the active drug component can be combined with an oral, non-toxic, pharmaceutically acceptable, inert carrier such as lactose, starch, sucrose, glucose, methyl callulose, magnesium stearate, dicalcium phosphate, calcium sulfate, mannitol, sorbitol and the like; for oral administration in liquid form, the oral drug components can be combined with any oral, non-toxic, pharmaceutically acceptable inert carrier such as ethanol, glycerol, water, and the like. Moreover, when desired or necessary, suitable binders, lubricants, disintegrating agents, and coloring agents can also be incorporated into the mixture. Suitable binders include starch, gelatin, natural sugars such as glucose or beta-lactose, corn sweeteners, natural and synthetic gums such as acacia, tragacanth, or sodium alginate, carboxymethylcellulose, polyethylene glycol, waxes, and the like. Lubricants used in these dosage forms include sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium acetate, sodium chloride, and the like. Disintegrators include, without limitation, starch, methyl cellulose, agar, bentonite, xanthan gum, and the like.

The compounds of the present invention can also be administered in the form of liposome delivery systems, such as small unilamellar vesicles, large unilamallar vesicles, and multilamellar vesicles. Liposomes can be formed from a variety of phospholipids, such as cholesterol, stearylamine, or phosphatidylcholines.

Compounds of the present invention may also be coupled with soluble polymers as targetable drug carriers. Such polymers can include polyvinylpyrrolidone, pyran copolymer, polyhydroxypropylmethacrylamide-phenol, polyhydroxyethylaspartamidephenol, or polyethyleneoxide polylysine substituted with palmitoyl residues. Furthermore, the compounds of the present invention may be coupled to a class of biodegradable polymers useful in achieving controlled release of a drug, for example, polylactic acid, polyglycolic acid, copolymers of polylactic and polyglycolic acid, polyepsilon caprolactone, polyhydroxy butyric acid, polyorthoesters, polyacetals, polydihydropyrans, polycyanoacylates, and crosslinked or amphipathic block copolymers of hydrogels.

Dosage forms (pharmaceutical compositions) suitable for administration may contain from about 1 milligram to about 100 milligrams of active ingredient per dosage unit. In these pharmaceutical compositions the active ingredient will ordinarily be present in an amount of about 0.5-95% by weight based on the total weight of the composition. The active ingredient can be administered orally in solid dosage forms, such as capsules, tablets, and powders, or in liquid dosage forms, such as elixirs, syrups, and suspensions. It can also be administered parenterally, in sterile liquid dosage forms.

Gelatin capsules may contain the active ingredient and powdered carriers, such as lactose, starch, cellulose derivatives, magnesium stearate, stearic acid, and the like. Similar diluents can be used to make compressed tablets. Both tablets and capsules can be manufactured as sustained release products to provide for continuous release of medication over a period of hours. Compressed tablets can be sugar coated or film coated to mask any unpleasant taste and protect the tablet from the atmosphere, or enteric coated for selective disintegration in the gastrointestinal tract. Liquid dosage forms for oral administration can contain coloring and flavoring to increase patient acceptance. In general, water, a suitable oil, saline, aqueous dextrose (glucose), and related sugar solutions and glycols such as propyleneglycol or polyethylene glycols are suitable carriers for parenteral solutions. Solutions for parenteral administration preferably contain a water soluble salt of the active ingredient, suitable stabilizing agents, and if necessary, buffer substances. Antioxidizing agents such as sodium bisulfite, sodium sulfite, or ascorbic acid, either alone or combined, are suitable stabilizing agents. Also used are citric acid and its salts and sodium EDTA. In addition, parenteral solutions can contain preservatives, such as benzalkonium chloride, methyl- or propyl-paraben, and chlorobutanol.

Suitable pharmaceutical carriers are described in Remington's Pharmaceutical Sciences, Mack Publishing Company, a standard reference text in this field. Useful pharmaceutical dosage-forms for administration of the compounds of this invention can be illustrated as follows:

Capsules

Capsules are prepared by conventional procedures so that the dosage unit is 500 milligrams of active ingredient, 100 milligrams of cellulose and 10 milligrams of magnesium stearate.

A large number of unit capsules may also prepared by filling standard two-piece hard gelatin capsules each with 100 milligrams of powdered active ingredient, 150 milligrams of lactose, 50 milligrams of cellulose, and 6 milligrams magnesium stearate.

Syrup Wt. % Active Ingredient 10 Liquid Sugar 50 Sorbitol 20 Glycerine  5 Flavor, Colorant and as required Preservative Water as required

The final volume is brought, up to 100% by the addition of distilled water.

Aqueous Suspension Wt. % Active Ingredient 10    Sodium Saccharin 0.01 Keltrol ® (Food Grade Xanthan Gum) 0.2  Liquid Sugar 5   Flavor, Colorant and as required Preservative Water as required

Xanthan gum is slowly added into distilled water before adding the active ingredient and the rest of the formulation ingredients. The final suspension is passed through a homogenizer to assure the elegance of the final products.

Resuspendable Powder Wt. % Active Ingredient 50.0 Lactose 35.0 Sugar 10.0 Acacia 4.7 Sodium Carboxylmethylcellulose 0.3

Each ingredient is finely pulverized and then uniformly mixed together. Alternatively, the powder can be prepared as a suspension and then spray dried.

Semi-Solid Gel Wt. % Active Ingredient 10 Sodium Saccharin 0.02 Gelatin 2 Flavor, Colorant and as required Preservative Water as required

Gelatin is prepared in hot water. The finely pulverized active ingredient is suspended in the gelatin solution and then the rest of the ingredients are mixed in. The suspension is filled into a suitable packaging container and cooled down to form the gel.

Semi-Solid Paste Wt. % Active Ingredient 10 Gelcarin ® (Carrageenin gum) 1 Sodium Saccharin 0.01 Gelatin 2 Flavor, Colorant and as required Preservative Water as required

Gelcarin® is dissolved in hot water (around 80° C.) and then the fine-powder active ingredient is suspended in this solution. Sodium saccharin and the rest of the formulation ingredients are added to the suspension while it is still warm. The suspension is homogenized and then filled into suitable containers.

Emulsifiable Paste Wt. % Active Ingredient 30 Tween ® 80 and Span ® 80 6 Keltrol ® 0.5 Mineral Oil 63.5

All the ingredients are carefully mixed together to make a homogenous paste.

Soft Gelatin Capsules

A mixture of active ingredient in a digestable oil such as soybean oil, cottonseed oil or olive oil is prepared and injected by means of a positive displacement pump into gelatin to form soft gelatin capsules containing 100 milligrams of the active ingredient. The capsules are washed and dried.

Tablets

Tablets may be prepared by conventional procedures so that the dosage unit is 500 milligrams of active ingredient, 150 milligrams of lactose, 50 milligrams of cellulose and 10 milligrams of magnesium stearate.

A large number of tablets may also be prepared by conventional procedures so that the dosage unit was 100 milligrams of active ingredient, 0.2 milligrams of colloidal silicon dioxide, 5 milligrams of magnesium stearate, 275 milligrams of microcrystalline cellulose, 11 milligrams of starch and 98.8 milligrams of lactose. Appropriate coatings may be applied to increase palatability or delay absorption.

Injectable

A parenteral composition suitable for administration by injection is prepared by stirring 1.5% by weight of active ingredient in 10% by volume propylene glycol and water. The solution is made isotonic with sodium chloride and sterilized.

Suspension

An aqueous suspension is prepared for oral administration so that each 5 mL contain 100 mg of finely divided active ingredient, 200 mg of sodium carboxymethyl cellulose, 5 mg of sodium benzoate, 1.0 g of sorbitol solution, U.S.P., and 0.025 mL of vanillin.

The compounds of the present invention may be administered in combination with a second therapeutic agent, especially non-steroidal anti-inflammatory drugs (NSAID's). The compound of Formula I and such second therapeutic agent can be administered separately or as a physical combination in a single dosage unit, in any dosage form and by various routes of administration, as described above.

The compound of Formula I may be formulated together with the second therapeutic agent in a single dosage unit (that is, combined together in one capsule, tablet, powder, or liquid, etc.). When the compound of Formula I and the second therapeutic agent are not formulated together in a single dosage unit, the compound of Formula I and the second therapeutic agent may be administered essentially at the same time, or in any order; for example the compound of Formula I may be administered first, followed by administration of the second agent. When not administered at the same time, preferably the administration of the compound of Formula I and the second therapeutic agent occurs less than about one hour apart, more preferably less than about 5 to 30 minutes apart.

Preferably the route of administration of the compound of Formula I is oral. Although it is preferable that the compound of Formula I and the second therapeutic agent are both administered by the same route (that is, for example, both orally), if desired, they may each be administered by different routes and in different dosage forms (that is, for example, one component of the combination product may be administered orally, and another component may be administered intravenously).

The dosage of the compound of Formula I when administered alone or in combination with a second therapeutic agent may vary depending upon various factors such as the pharmacodynamic characteristics of the particular agent and its mode and route of administration, the age, health and weight of the recipient, the nature and extent of the symptoms, the kind of concurrent treatment, the frequency of treatment, and the effect desired, as described above. Particularly when provided as a single dosage unit, the potential exists for a chemical interaction between the combined active ingredients. For this reason, when the compound of Formula I and a second therapeutic agent are combined in a single dosage unit they are formulated such that although the active ingredients are combined in a single dosage unit, the physical contact between the active ingredients is minimized (that is, reduced). For example, one active ingredient may be enteric coated. By enteric coating one of the active ingredients, it is possible not only to minimize the contact between the combined active ingredients, but also, it is possible to control the release of one of these components in the gastrointestinal tract such that one of these components is not released in the stomach but rather is released in the intestines. One of the active ingredients may also be coated with a sustained-release material which effects a sustained-release throughout the gastrointestinal tract and also serves to minimize physical contact between the combined active ingredients. Furthermore, the sustained-released component can be additionally enteric coated such that the release of this component occurs only in the intestine. Still another approach would involve the formulation of a combination product in which the one component is coated with a sustained and/or enteric release polymer, and the other component is also coated with a polymer such as a low viscosity grade of hydroxypropyl methylcellulose (HPMC) or other appropriate materials as known in the art, in order to further separate the active components. The polymer coating serves to form an additional barrier to interaction with the other component.

These as well as other ways of minimizing contact between the components of combination products of the present invention, whether administered in a single dosage form or administered in separate forms but at the same time by the same manner, will be readily apparent to those skilled in the art, once armed with the present disclosure.

The present invention also includes pharmaceutical kits useful, for example, in the treatment or prevention of osteoarthritis or rheumatoid arthritis, which comprise one or more containers containing a pharmaceutical composition comprising a therapeutically effective amount of a compound of Formula I. Such kits may further include, if desired, one or more of various conventional pharmaceutical kit components, such as, for example, containers with one or more pharmaceutically acceptable carriers, additional containers, etc., as will be readily apparent to those skilled in the art. Instructions, either as inserts or as labels, indicating quantities of the components to be administered, guidelines for administration, and/or guidelines for mixing the components, may also be included in the kit.

In the present disclosure it should be understood that the specified materials and conditions are important in practicing the invention but that unspecified materials and conditions are not excluded so long as they do not prevent the benefits of the invention from being realized.

Although this invention has been described with respect to specific embodiments, the details of these embodiments are not to be construed as limitations. Various equivalents, changes and modifications may be made without departing from the spirit and scope of this invention, and it is understood that such equivalent embodiments are part of this invention. 

What is claimed as new and desired to be secured by Letter Patent of United States is:
 1. A compound of formula I:

or a stereoisomer or pharmaceutically acceptable salt form thereof, wherein; A is —CONHOH; ring B is a 4 membered cyclic amide; R¹ is —Z—U^(a)—X^(a)—Y^(a)—Z^(a); Z is phenylene substituted with 0-5 R^(b); U^(a) is absent or is selected from: O, NR^(a), C(O)O, C(O)O, OC(O), C(O)NR^(a), NR^(a)C(O), OC(O)O, OC(O)NR^(a), NR^(a)C(O)O, NR^(a)C(O)NR^(a), S(O)_(p), S(O)_(p)NR^(a), NR^(a)S(O)_(p), and NR^(a)SO₂NR^(a); X^(a) is absent or selected from C₁₋₁₀ alkylene, C₂₋₁₀ alkenylene, C₂₋₁₀ alkynylene; Y^(a) is absent or selected from O, NR^(a), S(O)_(p), and C(O); Z^(a) is selected from H, a C₃₋₁₃ carbocyclic residue substituted with 0-5 R^(c) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c); R² is amino or methyl; R, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, CH═CH₂, CH═CH₃, and CH₂CH═CH₂; R′, at each occurrence, is independently selected from H, CH₃, CH₂CH₃, and CH(CH₃)₂; R³ is selected from Q, C₁₋₁₀ alkylene-Q, C₂₋₁₀ alkenylene-Q, C₂₋₁₀ alkynylene-Q, (CRR′)_(r′)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r)C(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)O(CRR′)_(r)—Q, (CRR′)_(r′)OC(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r″)NHQ, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)NHC(O)OR^(a), and (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)NHC(O)(CRR′)_(r)NHC(O)OR^(a), provided that R³ is other than H; Q is selected from H, a C₃₋₁₃carbocyclic residue substituted with 0-5 R^(b) and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b); R⁴ is H; R^(a), at each occurrence, is independently selected from H, C₁₋₄ alkyl, phenyl and benzyl; R^(a′), at each occurrence, is independently selected from H, C₁₋₄ alkyl, phenyl and benzyl; R^(a″), at each occurrence, is independently selected from H, C₁₋₄ alkyl, benzyl, C₃₋₇ carbocyclic residue, or a 5 to 6 membered heteroaromatic ring containing 1-4 heteroatoms. selected from the group consisting of N, O, and S; alternatively, R^(a) and R^(a′) taken together with the nitrogen to which they are attached form a 5 or 6 membered ring containing from 0-1 additional heteroatoms selected from the group consisting of N, O, and S; R^(b), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a″), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, and CF₂CF₃; R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), NR^(a)C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, —CH(═NOH), —C(═NOH)CH₃, (CRR′)_(s)O(CRR′)_(s′)R^(d), (CRR′)_(s)S(O)_(p)(CRR′)_(s′)R^(d), (CRR′)_(s)NR^(a)(CRR′)_(s′)R^(d), phenyl, and a 5-14 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S; R^(d), at each occurrence, is independently selected from phenyl substituted with 0-3 R^(b), biphenyl substituted with 0-2 R^(b), naphthyl substituted with 0-3 R^(b) and a 5-10 membered heteroaryl system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-3 R^(b); p, at each occurrence, is selected from 0, 1, and 2; r, at each occurrence, is selected from 0, 1, 2, 3, 4, and 5; r′, at each occurrence, is selected from 0, 1, 2, 3, 4, and 5; r″, at each occurrence, is selected from 1, 2, and 3; s, at each occurrence, is selected from 0, 1, 2, and 3; and, s′, at each occurrence, is selected from 0, 1, 2, and
 3. 2. A compound according to claim 1, wherein: U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)NR^(a), NR^(a)C(O), OC(O)NR^(a), NR^(a)C(O)O, NR^(a)C(O)NR^(a), S(O)_(p)NR^(a), and NR^(a)S(O)_(p); R³ is selected from Q, C₁₋₁₀ alkylene-Q, C₂₋₁₀ alkenylene-Q, C₂₋₁₀ alkynylene-Q, (CRR′)_(r′)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r)C(O)(CRR′)_(r)—Q, (CRR′)_(r)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)(CRR′)_(r)—Q, (CRR′)_(r)OC(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r)NR^(a)C(O)O(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)C(O)NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)S(O)_(p)(CRR′)_(r)—Q, (CRR′)_(r′)SO₂NR^(a)(CRR′)_(r)—Q, (CRR′)_(r′)NR^(a)SO₂(CRR′)_(r)—Q, and (CRR′)_(r′)NR^(a)SO₂NR^(a)(CRR′)_(r)—Q, provided that R³ is other than H; R, at each occurrence, is independently selected from H, CH₃, and CH₂CH₃; R′, at each occurrence, is independently selected from H and CH₃; Q is selected from H, a C₃₋₁₀ carbocyclic residue substituted with 0-5 R^(b) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b); and, R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.
 3. A compound according to claim 2, wherein: U^(a) is absent or is selected from: O, NR^(a), C(O), C(O)NR^(a), NR^(a)C(O), and S(O)_(p)NR^(a); X^(a) is absent or C₁₋₁₀ alkylene; R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-9 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S; and, Q is selected from H, a C₅₋₆ carbocyclic residue substituted with 0-5 R^(b) and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(b).
 4. A compound according to claim 3, wherein: Z is phenylene substituted with 0-3 R^(b); X^(a) is absent or C₁₄ alkylene; Y^(a) is absent or selected from O and NR^(a); Z^(a) is selected from H, a C₅₋₁₀ carbocyclic residue substituted with 0-5 R^(c) and a 5-10 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S and substituted with 0-5 R^(c); and, R^(c), at each occurrence, is independently selected from C₁₋₆ alkyl, OR^(a), Cl, F, Br, I, ═O, CN, NO₂, NR^(a)R^(a′), C(O)R^(a), C(O)OR^(a), C(O)NR^(a)R^(a′), S(O)₂NR^(a)R^(a′), S(O)_(p)R^(a), CF₃, CF₂CF₃, and a 5-6 membered heterocyclic system containing from 1-4 heteroatoms selected from the group consisting of N, O, and S.
 5. A pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 1 or a pharmaceutically acceptable salt form thereof.
 6. A method for treating or preventing an inflammatory disorder, comprising: administering to a patient in need thereof a therapeutically effective amount of a compound of claim 1 or a pharmaceutically acceptable salt form thereof.
 7. A method of treating according to claim 6, wherein the disorder is a condition or disease mediated by MMPs, TNF, aggrecanase, or a combination thereof.
 8. A method of treating a condition or disease according to claim 7, wherein the disease or condition is selected from: rheumatoid arthritis, osteoarthritis, periodontitis, gingivitis, corneal ulceration, solid tumor growth and tumor invasion by secondary metastases, neovascular glaucoma, multiple sclerosis, or psoriasis in a mammal.
 9. A compound according to claim 1, wherein the compounds is: [1(R)]-3-[4-[(3,5-dimethylphenyl)methoxy]phenyl]-N-hydroxy-alpha,3-dimethyl-2-oxo-1-azetidineacetamide; or a pharmaceutically acceptable salt form thereof.
 10. A pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 2 or a pharmaceutically acceptable salt form thereof.
 11. A pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 3 or a pharmaceutically acceptable salt form thereof.
 12. A pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 4 or a pharmaceutically acceptable salt form thereof.
 13. A pharmaceutical composition; comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 9 or a pharmaceutically acceptable salt form thereof.
 14. A method of treating according to claim 6, wherein the disorder is a condition or disease mediated by MMPs, TNF, aggrecanase, or a combination thereof in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of claim 2 or a pharmaceutically.acceptable salt form thereof.
 15. A method of treating according to claim 6, wherein the disorder is a condition or disease mediated by MMPs, TNF, aggrecanase, or a combination thereof in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of claim 3 or a pharmaceutically acceptable salt form thereof.
 16. A method of treating according to claim 6, wherein the disorder is a condition or disease mediated by MMPs, TNF, aggrecanase, or a.combination thereof in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of claim 4 or a pharmaceutically acceptable salt form thereof.
 17. A method of treating according to claim 6, wherein the disorder is a condition or disease mediated by MMPs, TNF, aggrecanase, or a combination thereof in a mammal, comprising: administering to the mammal in need of such treatment a therapeutically effective amount of a compound of claim 13 or a pharmaceutically acceptable salt form thereof. 